identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
1458879AFFEAFF90FF505A84FDF4FCAE.text	1458879AFFEAFF90FF505A84FDF4FCAE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Maritime habitats (Goldstein & Ascher 2016)	<div><p>Maritime Habitats</p><p>There are about 7,810 hectares of tidal wetland habitat in Connecticut, which include saltwater and brackish intertidal beaches, marshes, and rocky shores (Connecticut Department of Energy and Environmental Protection 2018). Connecticut beaches, which occupy about 14% of Connecticut’s coastline, include barrier spits, pocket beaches, and beaches composed of gravel or cobblestone ( University of Connecticut undated). Most sandy beaches in Connecticut are privately owned, however the state of Connecticut owns and manages beaches at Hammonasset State Park Beach (Middlesex County), Silver Sands State Park Beach ( New Haven County), Rocky Neck State Park Beach and Bluff Point State Park ( New London County), and Sherwood Island State Park Beach ( Fairfield County). The United States Fish and Wildlife Service manages the Stewart B. McKinney National Wildlife Refuge, which consists of 10 units comprising 3.8 km 2 and scattered across 113 km of the Connecticut coastline. Conservation organizations such as the Connecticut Audubon Society manage a coastal center at Milford Point ( New Haven County) and Stratford Point ( Fairfield County), and Audubon Connecticut manages Greenwich Point Park (Fairfield County) .</p><p>Coastal bees have been best studied at Grass Island preserve in Guilford, New Haven County (Zarrillo &amp; Stoner 2019), although bee bowl surveys were also conducted concomitantly at six other coastal locations throughout Connecticut by Laura Saucier of the Connecticut Department of Energy and Environmental Protection (unpublished). One notable bee species found at Grass Island and the Connecticut coastline is the Atlantic coastal sand dune specialist Lasioglossum marinum . This maritime bee is also found on Cape Cod and other coastal regions in Massachusetts (Goldstein &amp; Ascher 2016; Veit et al. 2022 [“2021”]), Gardiners Island, New York (Ascher et al. 2014), along the Long Island Shore east to Breezy Point in Queens, New York City (Ascher 2016) and at Napatree Point Conservation Area in Rhode Island (Rothwell &amp; Ginsberg 2019). Its range spans the eastern seaboard from New Hampshire to Florida. Hylaeu s s chwarzii is a coastal specialist that has been collected only at Grass Island in Connecticut, however it has been detected recently at a nearby barrier beach in western Rhode Island at the Napatree Point Conservation Area (Rothwell &amp; Ginsberg 2019) near the Connecticut border. Hylaeu s aff. nelumboni s was found at Grass Island in Connecticut (Zarrillo &amp; Stoner 2019) and on Gardiners Island in New York (Ascher et al. 2014), but not yet in Rhode Island (Rothwell &amp; Ginsberg 2019). The recently described sand-specialist Lasioglossum georgeickworti has been detected at both Grass Island (Zarrillo &amp; Stoner 2019) and Napatree Point in Rhode Island (Rothwell &amp; Ginsberg 2019) but not on Gardiners Island (Ascher et al. 2014). Although L. georgeckworti has been found in Connecticut and Rhode Island in maritime locations only, it is not limited to coastal beach dunes as the holotype for L. georgeckworti was collected in an inland xeric pitch-pine-scrub oak barren by J. Milam in Massachusetts at the Montague Plains Wildlife Management Area (Franklin County).</p><p>Native flora of beach communities in Connecticut that are important to bees include sea lavender ( Limonium carolinianum), seaside goldenrod ( Solidago sempervirens), American searocket ( Cakile edentula), eastern baccharis ( Baccharis halimifolia), beach pea ( Lathyrus japonicus), and beach plum ( Prunus maritima). Exotic beach rose ( Rosa rugosa) has become naturalized along the Connecticut coast and is considered an invasive plant species in Connecticut (Connecticut Invasive Plant Working Group 2022). Rosa rugosa is a major pollen source for bees in shoreline communities in Connecticut, especially Bombus impatiens (Zarrillo &amp; Stoner 2019) . It is unclear if Rosa rugosa is outcompeting native plants (Zarrillo &amp; Stoner 2019).</p><p>Herbaceous inland wetland habitat</p></div>	https://treatment.plazi.org/id/1458879AFFEAFF90FF505A84FDF4FCAE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFF9FF82FF505FBBFE55FC90.text	1458879AFFF9FF82FF505FBBFE55FC90.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrenini	<div><p>Andrenini</p><p>Genus Andrena Fabricius</p><p>Reference: Bossert et al. (2022); Bouseman &amp; LaBerge (1978); Cockerell (1902); Donovan (1977); Gibbs et al. (2017a); Hurd (1979); LaBerge (1967, 1969, 1971, 1973, 1977, 1980, 1985, 1986a, 1989); LaBerge &amp; Bouseman (1970); LaBerge &amp; Ribble (1972, 1975); Larkin et al. (2006); Mitchell (1960); Pisanty et al. (2022); Portman et al. (2020); Praz et al. (2022); Ribble (1967, 1968, 1974)</p><p>Subgenus Andrena Fabricius</p></div>	https://treatment.plazi.org/id/1458879AFFF9FF82FF505FBBFE55FC90	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFF9FF82FF505D0AFD67FB30.text	1458879AFFF9FF82FF505D0AFD67FB30.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) carolina Viereck 1909	<div><p>Andrena (Andrena) carolina Viereck, 1909</p><p>Carolina Miner</p><p>Notes: This species is a known specialist on blueberry ( Vaccinium sp.) (LaBerge 1980 [as A. longifacies LaBerge]; Wood &amp; Roberts 2018) and is associated in Central New York State with other Ericaceae such as deerberry ( Vaccinium stamineum) (Cane et al. 1985) [as A. longifacies LaBerge]. In Connecticut, it has been collected from leatherleaf ( Chamaedaphne calyculata), highbush blueberry ( Vaccinium corymbosum), and mountain maple ( Acer spicatum). Collection locations in Connecticut include powerline ROW, the edge of an ericaceous bog, and a hardwood forest dominated by oaks ( Quercus spp.).</p></div>	https://treatment.plazi.org/id/1458879AFFF9FF82FF505D0AFD67FB30	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFF9FF82FF505AEAFB36FA51.text	1458879AFFF9FF82FF505AEAFB36FA51.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) clarkella (Kirby 1802) H	<div><p>Andrena (Andrena) clarkella (Kirby, 1802)</p><p>Clark’s Miner</p><p>Notes: Hurd (1979), Litt (1998), and Westrich (2019) considered this naturally Holarctic, colorful, earlyflying vernal species to be a specialist of willow ( Salix). Studies of willow-visiting Andrena in New Brunswick found it to be a predominant species (Mosseler et al. 2020; Ostaff et al. 2015), and Falk &amp; Lewington (2015), in the United Kingdom, note that, “Pollen is obtained almost exclusively from willows,” assessments in accordance with our observations. In Connecticut, females of this species are known to visit willow ( Salix spp.) in habitats such as hardwood forests, acidic bogs, and inland riparian habitats in the northern part of the state.</p></div>	https://treatment.plazi.org/id/1458879AFFF9FF82FF505AEAFB36FA51	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFF9FF82FF50584AFCC8F89C.text	1458879AFFF9FF82FF50584AFCC8F89C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) cornelli Viereck 1907	<div><p>Andrena (Andrena) cornelli Viereck, 1907</p><p>Azalea Miner</p><p>Notes: This late spring bee has been netted from azaleas ( Rhododendron sp.) in Connecticut, supporting evidence for its affinity for that host plant ( LaBerge 1980), and is reliably found where its host plant is present within the state, even though it has not been found by recent workers at its type locality of Ithaca, New York (note lack of Tompkins County records in Ascher 2016). This species has been collected in a sandplain remnant, a sphagnum bog, a forest wildflower garden in an arboretum, and powerline ROW .</p></div>	https://treatment.plazi.org/id/1458879AFFF9FF82FF50584AFCC8F89C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFF9FF85FF505906FEB7FF6F.text	1458879AFFF9FF85FF505906FEB7FF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) frigida Smith 1853	<div><p>Andrena (Andrena) frigida Smith, 1853</p><p>Frigid Miner</p><p>Notes: This early spring bee is an oligolege of willow ( Salix sp.) (LaBerge 1980) and the most abundant visitor to those in its core, northern, range (Mosseler et al. 2020; Ostaff et al. 2015). In Connecticut it has been collected on or near its host plant in suburban neighborhoods, agricultural land, forest edges, and on school campuses.</p></div>	https://treatment.plazi.org/id/1458879AFFF9FF85FF505906FEB7FF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF85FF505EB0FE38FE73.text	1458879AFFFEFF85FF505EB0FE38FE73.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) mandibularis Robertson 1892	<div><p>Andrena (Andrena) mandibularis Robertson, 1892</p><p>Mandibulate Miner</p><p>Notes: This species has been collected recently in orchards, coastal scrub, a forest wildflower garden in an arboretum, powerline ROW, and university plantings in Connecticut, and in forest fragments in Massachusetts (J. Milam pers. comm.) .</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF85FF505EB0FE38FE73	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF85FF505FA4FB69FD5B.text	1458879AFFFEFF85FF505FA4FB69FD5B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) milwaukeensis Graenicher 1903	<div><p>Andrena (Andrena) milwaukeensis Graenicher, 1903</p><p>Milwaukee Miner</p><p>Notes: This species has been collected from a variety of flowers in Connecticut including moosewood maple ( Acer pensylvanicum) and Rosaceae including American mountain ash ( Sorbus americana). It has been collected regularly but in small numbers from diverse habitats such as powerline ROW, a conifer plantation, acidic bogs, inland wetlands, orchards, agricultural land, upland hardwood forests, and school grounds.</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF85FF505FA4FB69FD5B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF85FF505CBCFB59FC6F.text	1458879AFFFEFF85FF505CBCFB59FC6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) rufosignata Cockerell 1902	<div><p>Andrena (Andrena) rufosignata Cockerell, 1902</p><p>Brown-fovea Miner</p><p>Notes: This species has a relatively long malar space, perhaps an adaptation for extracting nectar from Ericaceae which it routinely visits among other host plants. In Connecticut it has been found in meadows, agricultural land, and a mixed forest of coniferous and broad-leaved trees near a swamp and black spruce bog.</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF85FF505CBCFB59FC6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF85FF505DB0FDAEFA39.text	1458879AFFFEFF85FF505DB0FDAEFA39.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) thaspii Graenicher 1903	<div><p>Andrena (Andrena) thaspii Graenicher, 1903</p><p>Meadow-parsnip Miner</p><p>= Andrena (Bythandrena) gabrielsoni Mitchell, 1960: 115 . (Connecticut holotype). Synonymy by LaBerge (1980).</p><p>Holotype. Female USA: Connecticut: Litchfield Co.: Colebrook, 23 July 1911, W. M. Wheeler (ANSP).</p><p>Notes: This widespread species has a relatively late flight season for a native Andrena and has been found in Connecticut along roadsides and forest edges visiting birds-foot-trefoil ( Lotus corniculatus). Wood &amp; Roberts (2018) report that A. thaspii is polylectic with a strong preference for Fabaceae pollen, but LaBerge (1980) noted “no strong floral preferences.” This species has also been detected in sandplain remnants, agricultural land, and pollinator gardens in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF85FF505DB0FDAEFA39	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF85FF505BE1FDA7F90A.text	1458879AFFFEFF85FF505BE1FDA7F90A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Andrena) tridens Robertson 1902	<div><p>Andrena (Andrena) tridens Robertson, 1902</p><p>Tridentate Miner</p><p>Notes: This vernal species was not cited for Connecticut by early historical workers, possibly due to identification difficulties prior to modern revisionary studies (LaBerge 1980). It has been collected in Connecticut in agricultural land, powerline ROW, hardwood forests, and an arboretum.</p><p>Subgenus Callandrena Cockerell</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF85FF505BE1FDA7F90A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFEFF84FF50588CFDE2FF6E.text	1458879AFFFEFF84FF50588CFDE2FF6E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) duplicata Mitchell 1960	<div><p>Andrena (Callandrena s. l.) duplicata Mitchell, 1960</p><p>Duplicate Miner</p><p>Notes: The only known record of this uncommon composite oligolege (Hurd 1979) in Connecticut is the female noted below. A putative first record for New York State (White et al. 2022) is from far north of the confirmed range of this species (see LaBerge 1967). No details are provided to document the identification, and we regard this report as unconfirmed at best.</p><p>Material examined. Fairfield Co.: New Canaan: 15 September 1967, coll. M. Favreau, 1 ♀, AMNH, det .</p><p>W.E. LaBerge, AMNH _ BEE 00008267.</p></div>	https://treatment.plazi.org/id/1458879AFFFEFF84FF50588CFDE2FF6E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505EB0FCC0FDE2.text	1458879AFFFFFF84FF505EB0FCC0FDE2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) aliciae Robertson 1891	<div><p>Andrena (Callandrena s. l.) aliciae Robertson, 1891</p><p>Alice’s Miner</p><p>Notes: Most records (n = 17) for this oligolege of Asteraceae (Hurd 1979) in Connecticut come from only 3 dates in 1967 from collections by M. S. Favreau in New Canaan (Fairfield County). There is a single record from Fairfield County in 1983, collector unknown. In 2020 and 2023, this species was detected in the towns of Southbury and North Haven (New Haven County) by community scientists on iNaturalist (https://www.inaturalist. org/observations?place_id=49&amp;subview=table&amp;taxon_id=336484) (see also Figure 2, F). It was also documented recently in the western counties of Massachusetts, where it is common on sunflowers ( Helianthus sp.) in community gardens, small farms, and natural areas (Veit et al. 2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505EB0FCC0FDE2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505C34FEBDFCF7.text	1458879AFFFFFF84FF505C34FEBDFCF7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) asteris Robertson. 1891	<div><p>Andrena (Callandrena s. l.) asteris Robertson. 1891</p><p>Northern Aster Miner</p><p>Notes: This late season species has been found on its known host plants in Connecticut, including asters ( Symphyotrichum spp.) and goldenrods ( Solidago s. l.), in meadows, school grounds, agricultural land, and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505C34FEBDFCF7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505D28FEFFFC05.text	1458879AFFFFFF84FF505D28FEFFFC05.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) braccata Viereck 1907	<div><p>Andrena (Callandrena s. l.) braccata Viereck, 1907</p><p>Braccate Miner</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505D28FEFFFC05	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505B6BFD43F998.text	1458879AFFFFFF84FF505B6BFD43F998.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) helianthi Robertson 1891	<div><p>Andrena (Callandrena s. l.) helianthi Robertson, 1891</p><p>Common Sunflower Miner</p><p>Notes: Most Connecticut specimens of this sunflower ( Helianthus spp.) specialist (Hurd et al. 1980; Wood &amp; Roberts 2018) were collected by M. S. Favreau in 1967 (n = 30). There are only three recent records; two are reported in Zarrillo et al. (2016) and the other is an observation made on iNaturalist by D. P. Mantack in 2023 (https://www.inaturalist.org/observations/178735972) .</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505B6BFD43F998	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505803FD42F8F5.text	1458879AFFFFFF84FF505803FD42F8F5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) krigiana Robertson 1901	<div><p>Andrena (Callandrena s. l.) krigiana Robertson, 1901</p><p>Dwarf Dandelion Miner</p><p>Notes: This dwarf dandelion ( Krigia sp.) specialist (Hurd 1979), recently reported northeast to Massachusetts</p><p>(Veit et al. 2022[“2021”]), is known in Connecticut from only one specimen noted below .</p><p>Material examined. New Haven Co.: New Haven: 13 June 1902, coll. E.J.S. Moore, sex unverified,</p><p>CAES, det. J.S. Ascher 2008, UCMS _ENT 00028187.</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505803FD42F8F5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF84FF505D9DFC76FAB3.text	1458879AFFFFFF84FF505D9DFC76FAB3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena braccata Viereck 1907	<div><p>Andrena braccata Viereck, 1907: 286 [287] (Connecticut lectotype designated by LaBerge, 1967).</p><p>Lectotype. Female USA: Connecticut: Tolland Co.: Rockville, 23 August 1905, H. L. Viereck (USNM).</p><p>Notes: This late season Asteraceae specialist has been found on goldenrods ( Solidago s. l.) in Connecticut, in habitats such as powerline ROW and sandplain remnants. Its distribution in the northeast centers around Massachusetts and Connecticut, south to Gardiners Island (Ascher et al. 2014) and the tip of eastern Long Island, New York, at Montauk Beach (Suffolk County), extending northward to Vermont, New Hampshire, and Maine, and south to Virginia, with its western range limits uncertain (LaBerge 1967).</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF84FF505D9DFC76FAB3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFFFF87FF50592DFA39FF43.text	1458879AFFFFFF87FF50592DFA39FF43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) placata Mitchell 1960	<div><p>Andrena (Callandrena s. l.) placata Mitchell, 1960</p><p>Shiny-tailed Goldenrod Miner</p><p>Notes: This late season specialist on goldenrods ( Solidago s. l.) (Hurd 1979; Wood &amp; Roberts 2018) was netted from its host plant during a study of alternative floral resources on vegetable farms in Connecticut (Stoner 2013). It was also found in sandplain remnants, powerline ROW, the edge of an inland swamp, and a quarry top .</p></div>	https://treatment.plazi.org/id/1458879AFFFFFF87FF50592DFA39FF43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFCFF87FF505F54FD8EFDB8.text	1458879AFFFCFF87FF505F54FD8EFDB8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Callandrena) simplex Smith 1853	<div><p>Andrena (Callandrena s. l.) simplex Smith, 1853</p><p>Dull-tailed Goldenrod Miner</p><p>Notes: This species has been collected from agricultural land, powerline ROW, a coastal wildlife refuge, and sandplain remnants.</p><p>Subgenus Cnemidandrena Hedicke</p></div>	https://treatment.plazi.org/id/1458879AFFFCFF87FF505F54FD8EFDB8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFCFF87FF505C62FF6DFC3C.text	1458879AFFFCFF87FF505C62FF6DFC3C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Cnemidandrena) canadensis Dalla Torre 1896	<div><p>Andrena (Cnemidandrena) canadensis Dalla Torre, 1896</p><p>Canada Miner</p><p>Notes: Most records (89%) for this species are from Litchfield County and are historical. Recent records (n = 2) were collected on 12 September 2007 and 11 October 2008. This species is broadly oligolectic on Asteraceae (Wood &amp; Roberts 2018) and has been collected on goldenrod ( Solidago s. l.) in Connecticut. Available habitat information for this species in Connecticut includes a small, diversified organic farm and a wooded suburban neighborhood. It is scarce in southern New England and evidently more numerous in northern New England, e.g. Coos County, New Hampshire, and Maine (M.F. Veit pers. comm.), and in Maritime Canada (J. S. Ascher pers. obs.).</p></div>	https://treatment.plazi.org/id/1458879AFFFCFF87FF505C62FF6DFC3C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFCFF87FF505DE6FD4EFB78.text	1458879AFFFCFF87FF505DE6FD4EFB78.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Cnemidandrena) hirticincta Provancher 1888	<div><p>Andrena (Cnemidandrena) hirticincta Provancher, 1888</p><p>Hairy-banded Miner</p><p>Notes: This common species is broadly oligolectic on Asteraceae (Wood &amp; Roberts 2018) and has been collected on wrinkleleaf goldenrod ( Solidago rugosa), seaside goldenrod ( Solidago sempervirens), late boneset ( Eupatorium serotinum), and various asters ( Symphyotrichum spp.) in diverse habitats in Connecticut, such as upland hardwood forests, sandplain remnants, a coastal wildlife refuge, coastal dunes, inland wetlands, powerline ROW, suburban neighborhoods, and agricultural land.</p></div>	https://treatment.plazi.org/id/1458879AFFFCFF87FF505DE6FD4EFB78	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFCFF87FF505AA2FB25FA44.text	1458879AFFFCFF87FF505AA2FB25FA44.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Cnemidandrena) nubecula Smith 1853	<div><p>Andrena (Cnemidandrena) nubecula Smith, 1853</p><p>Cloudy Miner</p><p>Notes: This specialist on Asteraceae (Wood &amp; Roberts 2018) has been collected on goldenrod ( Solidago s. l.) in Connecticut in powerline ROW, hardwood forests, sandplain remnants, inland wetlands, suburban neighborhoods, and agricultural land. This species was found in seven towns prior to the year 2000 and 18 towns after 2000, perhaps as an effect of the increasing number of community science observations of this distinctive species on iNaturalist (https://www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=198973).</p></div>	https://treatment.plazi.org/id/1458879AFFFCFF87FF505AA2FB25FA44	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFCFF86FF50585EFF50FE25.text	1458879AFFFCFF86FF50585EFF50FE25.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Cnemidandrena) parnassiae Cockerell 1902	<div><p>Andrena (Cnemidandrena) parnassiae Cockerell, 1902</p><p>Parnassia Miner</p><p>Notes: A female of this rare specialist of grass of Parnassus ( Parnassia glauca) was observed visiting its host plant in the town of Kent (Litchfield County) in 2020 on a dirt road along the western edge of the Housatonic River (https://www.inaturalist.org/observations/184382498). In 2021, two males were collected along a forest edge in a calcareous inland wetland in a powerline ROW in Canaan (Litchfield County) during a targeted search for this species. Although grass of Parnassus was in peak bloom and the weather was optimal, no other individuals were seen during a two-hour search. In 2023, targeted searches for A. parnassiae in Connecticut by M. W. McCarthy and T. A. Zarrillo, in five different locations, yielded only a single female (see Figure 2, E). This species is documented in New Jersey, Vermont, North Carolina, Ontario, Wisconsin, Michigan, and New York (near the Connecticut border in Dutchess County) by community scientists on iNaturalist.org, (https://www.inaturalist.org/observations?place_i d=any&amp;subview=table&amp;taxon_id=198972), and there are recent records documented in Massachusetts (Veit et al. 2022[“2021”]) and Manitoba (Gibbs et al. 2023). Although A. parnassiae may be more widespread than previously reported, host plant abundance alone may not be a great predictor of bee occurrence (M.W. McCarthy, pers. comm.) or abundance (J. Gibbs, pers. comm.).</p><p>Material examined. Litchfield Co.: Canaan: 41.98722 -73.35138, 4 September 2021, coll. T. A. Zarrillo, 2 ♂, CAES, det. T. A. Zarrillo 2021, netted from Parnassia sp., UCMS _ ENT 00077627, UCMS _ ENT 00077628; Sharon: 2023, coll. M.W. McCarthy, 1 ♀, Rutgers University, det. M.W. McCarthy 2023, netted from Parnassia glauca .</p></div>	https://treatment.plazi.org/id/1458879AFFFCFF86FF50585EFF50FE25	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFDFF86FF505FFCFDBEFC04.text	1458879AFFFDFF86FF505FFCFDBEFC04.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Cnemidandrena) robervalensis Mitchell 1960	<div><p>Andrena (Cnemidandrena) robervalensis Mitchell, 1960</p><p>Roberval Miner</p><p>Notes: There has been confusion between this species and the similar A. runcinatae due in part to the latter having been misclassified in subgenus Simandrena (see Hurd, 1979) leading to its omission from Donovan’s (1977) revision. Further taxonomic work on this pair is warranted, especially in the North Central States and Canada (Gibbs et al. 2017a, 2023; Portman et al. 2023). In the Northeastern United States, only A. robervalensis should occur, as reflected in relevant source databases but not yet all downstream institutional databases and metadatabases (which may report specimens as A. runcinatae).</p><p>Material examined. Fairfield Co.: New Canaan: 30 September 1956, coll. M. Statham, 1 ♂, AMNH, det. J.S. Ascher, AMNH _ BEE 00012674 ; New Haven Co.: North Branford: 18 September 2002, coll. V . A. Nelson, 1 ♀, YPM, det. T. A. Zarrillo 2023, YPM ENT 828805 .</p><p>Subgenus Conandrena Viereck</p></div>	https://treatment.plazi.org/id/1458879AFFFDFF86FF505FFCFDBEFC04	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFDFF86FF505D9DFDBDFA72.text	1458879AFFFDFF86FF505D9DFDBDFA72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Conandrena) bradleyi Viereck 1907	<div><p>Andrena (Conandrena) bradleyi Viereck, 1907</p><p>Bradley’s Miner</p><p>Notes: Andrena bradleyi is most often associated with blueberry ( Vaccinium spp.) (LaBerge 1985; Wood &amp; Roberts 2018) although regional experts agree that this species is not a narrow oligolege of Vaccinium (J. Milam &amp; M. F. Veit pers. comm.). Michael F. Veit (pers. comm.) has found A. bradleyi to be more common on leatherleaf ( Chamaedaphne calyculata) than Vaccinium . In Connecticut, females and males have been observed visiting leatherleaf ( Chamaedaphne calyculata) and willow ( Salix, two males only) as well as blueberry in habitats such as acidic bogs, swamps, littoral zones of ponds and lakes, blueberry patches, and pollinator gardens. Watson et al. (2023) recently reported a single female A. bradleyi collected on willow ( Salix sp.) in Manitoba with a pollen load consisting of 95.84% Salix pollen. This suggests that this bee species may be able to facultatively use pollen from another plant family when its preferred hosts are not available.</p><p>Subgenus Gonandrena Viereck</p></div>	https://treatment.plazi.org/id/1458879AFFFDFF86FF505D9DFDBDFA72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFDFF86FF505BA4FAB2F959.text	1458879AFFFDFF86FF505BA4FAB2F959.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Gonandrena) fragilis Smith 1853	<div><p>Andrena (Gonandrena) fragilis Smith, 1853</p><p>Fragile Dogwood-Miner</p><p>Notes: This Cornus ( Cornaceae) specialist, which has a more southern range than some other Goandrena (LaBerge &amp; Ribble 1972), has been found commonly throughout Connecticut in habitats such as small, diversified organic farms, powerline ROW, forested urban parks, inland wetlands, and sandplain remnants. In Massachusetts, J. Milam has reliably captured this species on dogwood ( Cornus sp.) in western counties (pers. comm.).</p></div>	https://treatment.plazi.org/id/1458879AFFFDFF86FF505BA4FAB2F959	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFFDFFF9FF505941FBCEFE79.text	1458879AFFFDFFF9FF505941FBCEFE79.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Gonandrena) integra Smith 1853	<div><p>Andrena (Gonandrena) integra Smith, 1853</p><p>Bare Dogwood-Miner</p><p>Notes: This specialist on Cornus ( Cornaceae) (LaBerge &amp; Ribble 1972; Wood &amp; Roberts 2018) is not well known in Connecticut, having only five records from Fairfield County spanning 1904–1997, and one record from Hartford County collected in 2010. Growing numbers of community science observations of this readily identifiable species in Vermont suggest that targeted searches for it in Connecticut on its preferred host plants might be productive.</p><p>Material examined. Fairfield Co.: Brookfield: 26 May 1904, coll. W.E. Britton, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028186; New Canaan: 17 June 1956, coll. M. Statham, 1 ♂, AMNH, det. LaBerge, AMNH _ BEE 00008842 ; 5 May 1962, coll. M. Statham, 1 ♂, AMNH, det. W.E. LaBerge, AMNH _ BEE 00008843; 31 May 1968, coll. M. Favreau, 1 ♀, AMNH, det. W.E. LaBerge, AMNH _ BEE 00008841; Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.97237&amp;materialsCitation.latitude=42.0015" title="Search Plazi for locations around (long -72.97237/lat 42.0015)">Hartland</a>: “West Hartland, 0.7 km S jct. State Route 20 and West Street”, 42.0015 -72.97237, 26 May 2010, coll. C. T . Maier, 1 ♀, CAES, det. J.S. Ascher, netted from Rubus allegheniensis, UCMS _ENT 00082191.</p></div>	https://treatment.plazi.org/id/1458879AFFFDFFF9FF505941FBCEFE79	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF9FF505FA2FAF3FD0D.text	1458879AFF82FFF9FF505FA2FAF3FD0D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Gonandrena) persimulata Viereck 1917	<div><p>Andrena (Gonandrena) persimulata Viereck, 1917</p><p>Northern Dogwood-Miner</p><p>Notes: This specialist on Cornus ( Cornaceae) (Hurd 1979) has a generally northern distribution and is known in Connecticut only from a Waterbury (New Haven County) record reported in LaBerge &amp; Ribble (1972). Hardy et al. (2021) report this species is likely the least common of the four Cornus specialists in Vermont.</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF9FF505FA2FAF3FD0D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF9FF505C96FDB4FB33.text	1458879AFF82FFF9FF505C96FDB4FB33.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Gonandrena) platyparia Robertson 1895	<div><p>Andrena (Gonandrena) platyparia Robertson, 1895</p><p>Dark-horned Dogwood-Miner</p><p>Notes: There are only four specimen records for this specialist on Cornus ( Cornaceae) (LaBerge &amp; Ribble</p><p>1972) in Connecticut.</p><p>Material examined. Fairfield Co.: New Canaan: 3 June 1968, coll. M. Favreau, 1 ♀, AMNH, det. W.E. LaBerge, AMNH _ BEE 00011834; 1 ♀, AMNH, det. J.S. Ascher 2010, AMNH _ BEE 00108254; Tolland Co.: Mansfield: “Storrs, Student Union”, 2 July 1974, coll. G.I. Stage, 1 ♀, UCMS , det. T. A. Zarrillo 2021, UCMS _ ENT 00077629 ; “near Chapins Pond ”, 6 July 1974, coll. G.I. Stage, 1 ♀, GSC, det. J.S. Ascher 2008, UCMS _ ENT 00027924 .</p><p>Subgenera Iomelissa Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF9FF505C96FDB4FB33	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF9FF505AEBFDADFA29.text	1458879AFF82FFF9FF505AEBFDADFA29.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Iomelissa) violae Robertson 1891	<div><p>Andrena (Iomelissa) violae Robertson, 1891</p><p>Violet Miner</p><p>Notes: This specialist on violet ( Viola) pollen (LaBerge 1985) has been found in a variety of habitats in</p><p>Connecticut, including agricultural land, orchards, beach dunes, coastal marsh, forests, and powerline ROW.</p><p>Subgenera Larandrena LaBerge</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF9FF505AEBFDADFA29	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF9FF505BF2FD9AF9C2.text	1458879AFF82FFF9FF505BF2FD9AF9C2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Larandrena) miserabilis Cresson 1872	<div><p>Andrena (Larandrena) miserabilis Cresson, 1872</p><p>Tufted Miner</p><p>Notes: This spring species persists commonly across Connecticut.</p><p>Subgenera Leucandrena Hedicke</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF9FF505BF2FD9AF9C2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF9FF5058D4FAD7F8D6.text	1458879AFF82FFF9FF5058D4FAD7F8D6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Leucandrena) barbilabris (Kirby 1802) F	<div><p>Andrena (Leucandrena) barbilabris (Kirby, 1802)</p><p>Barb-lipped Miner</p><p>Notes: This Holarctic species (Falk &amp; Lewington 2015; Westrich 2019) is known to visit rosaceous plants in Connecticut such as American gooseberry ( Ribes oxyacanthoides), flowering plum ( Prunus triloba), pear ( Pyrus communis), peach ( Prunus persica), European plum ( Prunus domestica), and Chinese plum ( Prunus salicina).</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF9FF5058D4FAD7F8D6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF82FFF8FF5059C8FC9AFE41.text	1458879AFF82FFF8FF5059C8FC9AFE41.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Leucandrena) erythronii Robertson 1891	<div><p>Andrena (Leucandrena) erythronii Robertson, 1891</p><p>Trout-lily Miner</p><p>Notes: Hurd (1979) reports this spring species primarily collects pollen from trout-lily ( Erythronium americanum), but it is known to use pollen from other taxa as well, such as Quercus, Taraxacum, Prunus, and Malus (Michener &amp; Rettenmeyer 1956), and Smith et al. (2018) found the pollen loads of A. erythronii to be unusually diverse. LaBerge (1986a) reports Andrena erythronii from Hartford, New Haven, and Tolland Counties. We have also found this species in Litchfield County at the southern edge of an agricultural field and approximately 60 m from the edge of a hardwood forest.</p><p>Material examined. Litchfield Co.: Kent: “Millstone Farm, 49 Beardsley Road”, 41.69833 -73.38722, 6</p><p>May 2013, coll. T. A. Zarrillo, 1 ♀, CAES, det. J.S. Ascher, netted from Pyrus communis, UCMS _ENT 00072057 .</p><p>Subgenus Melandrena Pérez (sensu Pisanty et al. 2022)</p></div>	https://treatment.plazi.org/id/1458879AFF82FFF8FF5059C8FC9AFE41	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF83FFF8FF505C59FB28FC03.text	1458879AFF83FFF8FF505C59FB28FC03.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) barbara Bouseman and LaBerge 1979	<div><p>Andrena (Melandrena) barbara Bouseman and LaBerge, 1979</p><p>Barbara’s Miner</p><p>Notes: There are three records for this large spring bee in Connecticut in three different counties. Due to its relatively recent description, it was not reported by historical workers in the region.</p><p>Material examined. Fairfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.5271&amp;materialsCitation.latitude=41.39247" title="Search Plazi for locations around (long -73.5271/lat 41.39247)">Danbury</a>: “I-84, exit 2”, 41.39247 -73.5271, 9 April 2005, coll. J.S. Ascher, 1 ♂, AMNH , det. J.S. Ascher 2008, netted from Salix sp., AMNH _ BEE 00064349 ; Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.540504&amp;materialsCitation.latitude=41.843136" title="Search Plazi for locations around (long -72.540504/lat 41.843136)">South Windsor</a>: 41.84313503 -72.54050636, 28 May 2017, coll. M.F. Veit, 1 ♀, personal collection, det. M.F. Veit, powerline ROW ; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.47278&amp;materialsCitation.latitude=41.28694" title="Search Plazi for locations around (long -72.47278/lat 41.28694)">Middlesex Co</a>: Westbrook: “ USFWS Stewart B. McKinney National Wildlife Refuge, Salt Meadow Unit, 733 Old Clinton Road”, 41.28694 -72.47278, 29 May–10 June 2013, coll. K. Vagos, 1 ♀, CAES , det. S. Droege 2017 and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00074991 .</p></div>	https://treatment.plazi.org/id/1458879AFF83FFF8FF505C59FB28FC03	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF83FFF8FF505D94FEFFFA86.text	1458879AFF83FFF8FF505D94FEFFFA86.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) carlini Cockerell 1901	<div><p>Andrena (Melandrena) carlini Cockerell, 1901</p><p>Carlinville Miner</p><p>Notes: This vernal species, known to be an important blueberry visitor (Boulanger et al. 1967; Bushman &amp; Drummond 2015; Kloet 1976), is commonly found throughout Connecticut in diverse habitats including a coastal wildlife refuge, beach dunes, inland sandplain remnants, acidic bogs, hayfields and grassy meadows, pollinator and botanical gardens, agricultural fields and orchards, hardwood forests, and powerline ROW. A large number of Andrena (Melandrena) records on community science sites from Connecticut and nearby states likely pertain to this species but are often left unidentified due to potential confusion with A. regularis, a numerous species to the north of Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF83FFF8FF505D94FEFFFA86	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF83FFF8FF505B18FA29F98B.text	1458879AFF83FFF8FF505B18FA29F98B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) commoda Smith 1879	<div><p>Andrena (Melandrena) commoda Smith, 1879</p><p>Commodius Miner</p><p>Notes: This species has been found in coastal locations in Connecticut, such as beach dunes and marshes, as well as inland urban environments, agricultural land, and arboretums. Most Massachusetts records are coastal, from Cape Cod and Plymouth County, with some southern records from inland locations (M.F. Veit pers. comm.) .</p></div>	https://treatment.plazi.org/id/1458879AFF83FFF8FF505B18FA29F98B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF83FFF8FF50580CFBBFF870.text	1458879AFF83FFF8FF50580CFBBFF870.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) confederata Viereck 1917	<div><p>Andrena (Melandrena) confederata Viereck, 1917</p><p>Confederate Miner</p><p>Notes: This southern species reaches its northern range limit in Connecticut, with only three records in two coastal counties.</p><p>Material examined. Fairfield Co.: New Canaan: 27 May 1962, coll. M. Statham, 1 ♂, AMNH, det. W.E. LaBerge, AMNH _ BEE 00020584 ; New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.188614&amp;materialsCitation.latitude=41.495556" title="Search Plazi for locations around (long -72.188614/lat 41.495556)">Montville</a>: “Route 163”, 41.495556, -72.188611, 6–10 June 2005, coll. C.J. Daley, 1 ♂, UCMS, det. J.S. Ascher 2006, yellow bee bowl, UCMS _ ENT 00020584; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.10985&amp;materialsCitation.latitude=41.3797" title="Search Plazi for locations around (long -72.10985/lat 41.3797)">New London</a>: “ Connecticut College Arboretum, 270 Mohegan Avenue”, 41.3797, -72.10985, 4–11 June 2019, coll. T . A. Zarrillo &amp; J. Durrell, 1 ♀, CAES, det. J. Day 2019, bee bowl, UCMS _ ENT 00082093 .</p></div>	https://treatment.plazi.org/id/1458879AFF83FFF8FF50580CFBBFF870	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF505ED5FEECFF53.text	1458879AFF80FFFBFF505ED5FEECFF53.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) dunningi Cockerell 1898	<div><p>Andrena (Melandrena) dunningi Cockerell, 1898</p><p>Dunning’s Miner</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF505ED5FEECFF53	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF505F4AFA85FE00.text	1458879AFF80FFFBFF505F4AFA85FE00.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) Dunningi Cockerell 1898	<div><p>Andrena (Melandrena) Dunningi Cockerell, 1898: 103 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: Hartford Co.: Hartford, 26 May 1895, S. N. Dunning (USNM).</p><p>Notes: This common spring species has been found across Connecticut in habitats such as agricultural land, urban and suburban neighborhoods, pollinator gardens, an arboretum, and at the edge of an inland swamp.</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF505F4AFA85FE00	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF505F9BFD5EFC42.text	1458879AFF80FFFBFF505F9BFD5EFC42.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) erythrogaster (Ashmead 1890)	<div><p>Andrena (Melandrena) erythrogaster (Ashmead, 1890)</p><p>Red-tailed Miner</p><p>= Andrena rhodora Cockerell, 1898: 171 (Connecticut lectotype; see LaBerge and Bouseman, 1970).</p><p>Lectotype. Female USA: Connecticut: Hartford Co.: Hartford, 2 June 1895, S. N. Dunning (USNM).</p><p>Notes: First reported in Connecticut from Cockerell’s description of Andrena rhodura (Cockerell 1898b), now a junior synonym. There are few records for this oligolege of willow ( Salix) (Hurd 1979; Wood &amp; Roberts 2018) in Connecticut, having only five records between 1904 and 1915, and then a gap of almost 90 years before this species was detected again on 24 April 2004 by J. S. Ascher in Bethel (Fairfield County) on willow (n = 17). The next detection of this species in Connecticut was a female singleton collected in Northford (New Haven County) on 12 May 2011 on wild mustard ( Brassica rapa) during a study of alternative floral resources on diversified farms (Stoner 2013). More recently, this species was found in 2023 at Robbins Swamp Wildlife Management Area in Canaan (Litchfield County). This species is locally common on willow ( Salix sp.) in Massachusetts (M.F. Veit pers. comm.) but may be declining in more southern sites.</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF505F9BFD5EFC42	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF505A54FAC6FAAA.text	1458879AFF80FFFBFF505A54FAC6FAAA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) hilaris Smith 1853	<div><p>Andrena (Melandrena) hilaris Smith, 1853</p><p>Lively Miner</p><p>Notes: This southern species was reported in Britton &amp; Viereck (1906) [as “ A. hilaris ?”] and again in Viereck et al. (1916), but records published before the subgeneric revision (Bouseman &amp; LaBerge 1978) are not reliable. The first verified record for the state we could locate is from 1962, determined by J. K. Bouseman. There are fifteen verified records for this species in Connecticut from ten distinct collecting events, all in coastal counties .</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF505A54FAC6FAAA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF505B6CFADCF9CB.text	1458879AFF80FFFBFF505B6CFADCF9CB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) nivalis Smith 1853	<div><p>Andrena (Melandrena) nivalis Smith, 1853</p><p>Snowy Miner</p><p>Notes: This northern species was first reported in Viereck et al. (1916). The first specimen vouchers we could locate were collected in 1976 on meadowsweet ( Spiraea sp.) and maleberry ( Lyonia sp.) in Stafford (Tolland County) by G. I. Stage. Connecticut is near the southern edge of this species’ range. Andrena nivalis is best known from inland and upland locations within the state except for two specimens collected at the Connecticut College Arboretum in coastal New London County in 2019, which is near the Thames River. It has been collected in habitats such as a forest meadow, powerline ROW, upland hardwood forest, agricultural land, and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF505B6CFADCF9CB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF80FFFBFF5058CCFB74F816.text	1458879AFF80FFFBFF5058CCFB74F816.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) perplexa Smith 1853	<div><p>Andrena (Melandrena) perplexa Smith, 1853</p><p>Perplexing Miner</p><p>Notes: This species was reported in Viereck et al. (1916) [as Andrena perplexa viburnella Graenicher], but the historical voucher has not been located and there is the potential for confusion with several other Melandrena species e.g., A. barbara, and A. vicina . This species is widespread in Connecticut, being present in all but one county. Although not common, it is regularly collected in diverse habitats such as beach dunes, forest edges and openings, inland wetlands, powerline ROW, school grounds, grassy fields, and agricultural land.</p></div>	https://treatment.plazi.org/id/1458879AFF80FFFBFF5058CCFB74F816	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFAFF505ED5FCF3FE6D.text	1458879AFF81FFFAFF505ED5FCF3FE6D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) pruni Robertson 1891	<div><p>Andrena (Melandrena) pruni Robertson, 1891</p><p>Cherry Miner</p><p>Notes: Despite the distinctive narrow foveae of females and conspicuous sternal hair tuft of males, Andrena pruni was overlooked in historical collections (Gibbs et al. 2017a), and it may have been mistaken for A. dunningi by Viereck et al. (1916). Since Zarrillo et al. (2016), Tolland County has been added to its distribution. This species has been found in meadows, powerline ROW, agricultural land, beach dunes, hardwood forests, school grounds, an arboretum, suburban neighborhoods, and sandplain remnants. It has been collected regularly in Connecticut since 1962 and shows up in regional community science databases.</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFAFF505ED5FCF3FE6D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFAFF505FB5FD49FCA9.text	1458879AFF81FFFAFF505FB5FD49FCA9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) regularis Malloch 1917	<div><p>Andrena (Melandrena) regularis Malloch, 1917</p><p>Point-tailed Miner</p><p>Notes: Historically, from 1904 to 1964, this species was detected only in New Haven County in southern coastal Connecticut, even though this species has a generally northern range (Bouseman &amp; Laberge, 1978). However, in recent years all but two records in Connecticut come from the Lower Berkshire Hills, the Berkshire Transition, and the Western New England Marble Valleys in Litchfield County. This species has been found in habitats such as acidic and black spruce bogs in northern Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFAFF505FB5FD49FCA9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFAFF505D71FAE1FB6A.text	1458879AFF81FFFAFF505D71FAE1FB6A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) sayi Robertson 1891	<div><p>Andrena (Melandrena) sayi Robertson, 1891</p><p>Say’s Miner</p><p>Notes: Correctly identified examples of this southern species (Bouseman &amp; LaBerge 1978) are nearly absent from regional collections, so its recent detection as far north as Connecticut is surprising. A female was captured in a deciduous inland wetland. The specimen was carefully examined and determined by T. A. Zarrillo and M.F. Veit with reference to Bouseman &amp; LaBerge (1978). This represents a large range extension for this species from the Midwest and Mid-Atlantic Regions into southern New England (there are no confirmed records from New York State) .</p><p>Material examined. Fairfield Co.: Stamford: “Bartlett Arboretum”, 41.13378 -73.55256, 13–20 May</p><p>2019, coll. T. A. Zarrillo, 1 ♀, CAES, det. T. A. Zarrillo &amp; M.F. Veit 2021, bee bowl, UCMS _ ENT 00776626 .</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFAFF505D71FAE1FB6A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFAFF505AACFDA4FA63.text	1458879AFF81FFFAFF505AACFDA4FA63.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Melandrena) vicina Smith 1853	<div><p>Andrena (Melandrena) vicina Smith, 1853</p><p>Neighborly Miner</p><p>Notes: This common species has been found in habitats such as agricultural land, powerline ROW, inland wetlands, upland hardwood forests, acidic bogs, and coastal wetlands.</p><p>Subgenus Micrandrena Ashmead</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFAFF505AACFDA4FA63	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFAFF505BBBFC42F8EA.text	1458879AFF81FFFAFF505BBBFC42F8EA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) melanochroa Cockerell 1898	<div><p>Andrena (Micrandrena) melanochroa Cockerell, 1898</p><p>Strawberry Mini-Miner</p><p>Notes: First reported from Connecticut by Mitchell (1960), and not well known in the state.</p><p>Material examined. Hartford Co.: West Hartford: “ Hartford Reservoir Number 3”, 3 May 1967, coll. S.M. Fullerton, 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00050268 ; Granby: 24 May 1973, coll. J. Blake, 2 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00050266, UCMS _ ENT 00050267 ; Tolland Co.: Mansfield: “Chaffeeville”, 25 April 1972, coll. J.G. Berardinelli, 1 ♂, UCMS, det. J.S. Ascher, UCMS _ ENT 00052414 ; “ Storrs ”, 12 May 1972, coll. J.G. Berardinelli, 1 ♂, UCMS, det. J.S. Ascher, UCMS _ ENT 00052415 .</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFAFF505BBBFC42F8EA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF81FFFDFF50592DFB9CFEC1.text	1458879AFF81FFFDFF50592DFB9CFEC1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) neonana Viereck 1917	<div><p>Andrena (Micrandrena) neonana Viereck, 1917</p><p>Rugose-backed Mini-Miner</p><p>Notes: This small species of southern affinities is not well known in Connecticut, although it has been recently documented on Martha’s Vineyard, Massachusetts (Goldstein &amp; Ascher 2016), Gardiners Island, New York, and New York State (Ascher et al. 2014). There are only two Connecticut records, both captured during a Bioblitz .</p><p>Material examined. Hartford Co.: East Hartford: “Rentschler Field”, 4 June 2005, coll. J.S. Ascher, 2 ♂ ,</p><p>AMNH, det. J.S. Ascher 2010, AMNH _ BEE 00141274, AMNH _ BEE 00141275.</p></div>	https://treatment.plazi.org/id/1458879AFF81FFFDFF50592DFB9CFEC1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFDFF505CF2FBFCFC10.text	1458879AFF86FFFDFF505CF2FBFCFC10.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) personata Robertson 1897	<div><p>Andrena (Micrandrena) personata Robertson, 1897</p><p>Masked Mini-Miner</p><p>Notes: The presence of this species in Connecticut is recorded only in Mitchell (1960) without details. Further confirmation is desirable given the paucity of fully confirmed records north of southern Pennsylvania (Ribble 1968). We accept the record in Mitchell (1960), however, due to the existence of credible records for New York and Vermont, despite lack of Massachusetts records (Veit et al. 2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFDFF505CF2FBFCFC10	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFDFF505D8AFEC9FAB0.text	1458879AFF86FFFDFF505D8AFEC9FAB0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) salictaria Robertson 1905	<div><p>Andrena (Micrandrena) salictaria Robertson, 1905</p><p>Willow Mini-Miner</p><p>Notes: This northern species is not well known from Connecticut, having only 16 records (including the record in Ribble 1968) and four known collection events in Bethel (Fairfield County, 9 April 2005, n = 1), Danbury (Fairfield County, 24 April 2004, n = 10), Windsor (Hartford County, 21 May 1934, n = 1), and West Hartford (Hartford County, 1 May 1967, n = 3). Ten of the sixteen records were netted from its pollen host willow ( Salix sp.; Ribble 1968, see also Ostaff et al. 2015; Mosseler et al. 2020), and one specimen was collected from maleberry ( Lyonia ligustrina).</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFDFF505D8AFEC9FAB0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFDFF505B6AFED0FAC7.text	1458879AFF86FFFDFF505B6AFED0FAC7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) vernalis Mitchell 1960	<div><p>Andrena (Micrandrena) vernalis Mitchell, 1960</p><p>Vernal Mini-Miner</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFDFF505B6AFED0FAC7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFDFF505BDFFE44F92E.text	1458879AFF86FFFDFF505BDFFE44F92E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) vernalis Mitchell 1960	<div><p>Andrena (Micrandrena) vernalis Mitchell, 1960: 168 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: Litchfield Co.: Colebrook, 31 May 1922, W. M. Wheeler (MCZ).</p><p>Notes: At this time, we are considering only the specimens examined by Portman et al. (2020) at MCZ to be valid A. vernalis, due to the uncertain status of the remaining specimens at AMNH, UCMS, and CAES. Tracy A. Zarrillo examined the specimens at MCZ, UCMS, and CAES and was unable to distinguish this species from Andrena ziziae with confidence.</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFDFF505BDFFE44F92E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFDFF505FDAFE05FD28.text	1458879AFF86FFFDFF505FDAFE05FD28.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Microandrena) nigrae Robertson 1905	<div><p>Andrena (Microandrena) nigrae Robertson, 1905</p><p>Orange-footed Mini-Miner</p><p>Notes: Hartford is reported for this rare species as either a town or county in Ribble (1967), and this record may be the specimen that Ribble determined at SEMC, collected on 13 May 1894 (SEMC 396379; unverified by us by the time of publication). Andrena nigrae has been historically confused with Andrena illinoiensis (see Appendix 2) and Andrena salictaria .</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFDFF505FDAFE05FD28	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF86FFFCFF5058F0FB44FF0A.text	1458879AFF86FFFCFF5058F0FB44FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) ziziae sensu Portman Robertson 1891	<div><p>Andrena (Micrandrena) ziziae Robertson, 1891 (sensu Portman et al. 2020)</p><p>Golden Alexander Mini-Miner</p><p>Notes: At this time, we are considering only the specimens examined by Portman et al. (2020) at MCZ to be valid A. ziziae, in Connecticut due to the uncertain status of the remaining specimens at AMNH, UCMS, and CAES. T. A. Zarrillo examined the vouchers at MCZ, UCMS, and CAES and was unable to distinguish this species from Andrena vernalis with confidence.</p><p>Subgenus Opandrena Robertson (reinstated as distinct from Holandrena by Pisanty et al. 2022)</p></div>	https://treatment.plazi.org/id/1458879AFF86FFFCFF5058F0FB44FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF87FFFCFF505E8CFDA4FE64.text	1458879AFF87FFFCFF505E8CFDA4FE64.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Opandrena) cressonii subsp. cressonii Robertson 1891	<div><p>Andrena (Opandrena) cressonii cressonii Robertson, 1891</p><p>Cresson’s Miner</p><p>Notes: This species is well known throughout Connecticut and has been collected in habitats such as agricultural land, powerline ROW, sandplain remnants, inland wetlands, state forests and parks, arboretums, urban/ suburban neighborhoods, and a coastal wildlife refuge.</p><p>Subgenus Parandrena Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF87FFFCFF505E8CFDA4FE64	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF87FFFCFF505FBFFC76FCEE.text	1458879AFF87FFFCFF505FBFFC76FCEE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Parandrena) nida Mitchell 1960	<div><p>Andrena (Parandrena) nida Mitchell, 1960</p><p>Sandbar Willow Miner</p><p>Notes: This species is reportedly a willow specialist (LaBerge &amp; Ribble 1972) and is known to visit sandbar willows very locally at Ithaca, New York, where it is scarce. There are only two records of this species in Connecticut.</p><p>Material examined. Tolland Co.: Coventry: “near Eagleville Dam”, 25 April 1972, coll. M.M. Primiani, 1 ♂, UCMS, det. J.S. Ascher 2013, UCMS _ ENT 00055442; Mansfield: “Chaffeeville”, 25 April 1972, coll. J.G. Berardinelli, 1 ♂, UCMS, det. J.S. Ascher 2013, UCMS _ ENT 00055441 .</p></div>	https://treatment.plazi.org/id/1458879AFF87FFFCFF505FBFFC76FCEE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF87FFFCFF505D31FDAFFAE2.text	1458879AFF87FFFCFF505D31FDAFFAE2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Parandrena) wellesleyana Robertson 1897	<div><p>Andrena (Parandrena) wellesleyana Robertson, 1897</p><p>Wellesley Willow Miner</p><p>Notes: There are twenty records for this willow specialist (Wood &amp; Roberts 2018) in Connecticut. Five specimens were collected between 1915 and 1916 by H. L. Johnson in “South” Meriden (New Haven County), and then 56 years later this species was detected again on 25–27 April 1972 (n = 12) in Coventry (Tolland County) and Mansfield ( Tolland County). Veit et al. (2022[“2021”]) reported this species to be associated with interior sandplains and former gravel/sand pits in Massachusetts. Connecticut locality information is imprecise, with general references made to inland wetlands, such as “near Chapins Pond” ( Mansfield) or “near Eagleville Dam” (Coventry). The two latest records collected by C. T. Maier on 21 April 1997 and 31 March 1998 were taken in a “heavily disturbed (ATV’s) sandy area” (C. T. Maier pers. comm.) in “North Haven 0.5 km NNW of interchange 12 (US Highway 5) on Interstate 91”, which is in New Haven County .</p><p>Subgenus Plastandrena Hedicke</p></div>	https://treatment.plazi.org/id/1458879AFF87FFFCFF505D31FDAFFAE2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF87FFFCFF505B34FCECF93F.text	1458879AFF87FFFCFF505B34FCECF93F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Plastandrena) crataegi Robertson 1893	<div><p>Andrena (Plastandrena) crataegi Robertson, 1893</p><p>Hawthorn Miner</p><p>Notes: This species has been found in diverse habitats throughout Connecticut, such as acidic bogs, agricultural fields and orchards, state forests and parks, marsh, beach dunes, a coastal wildlife preserve, and school grounds.</p><p>Subgenus Ptilandrena Robertson (sensu Pisanty et al. 2022)</p></div>	https://treatment.plazi.org/id/1458879AFF87FFFCFF505B34FCECF93F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF87FFFCFF5058E7FACFF878.text	1458879AFF87FFFCFF5058E7FACFF878.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Ptilandrena) algida Smith 1853	<div><p>Andrena (Ptilandrena) algida Smith, 1853</p><p>Wintry Miner</p><p>Notes: There are only ten specimen records for this northern species in Connecticut, seven being captured before the year 2000. The two most recent specimens are males that were collected on pussy willow ( Salix discolor) in Sharon (Litchfield County) by C. T. Maier on 16 April 2009 near an orchard and berry farm. Other records were collected near an inland lake, at an exit ramp off a major interstate highway, and a forested state park. This species may be more common as a willow visitor to the north of Connecticut (Mosseler et al. 2020; Ostaff et al. 2015) .</p></div>	https://treatment.plazi.org/id/1458879AFF87FFFCFF5058E7FACFF878	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF505ED5FC0FFEFD.text	1458879AFF84FFFFFF505ED5FC0FFEFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Ptilandrena) distans Provancher 1888	<div><p>Andrena (Ptilandrena) distans Provancher, 1888</p><p>Cranesbill Miner</p><p>Notes: This specialist on wild geranium ( Geranium maculatum) (Wood &amp; Roberts 2018) has been collected locally along forest margins in Connecticut where its host plant occurs .</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF505ED5FC0FFEFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF505F25FB58FDAD.text	1458879AFF84FFFFFF505F25FB58FDAD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Ptilandrena) erigeniae Robertson 1891	<div><p>Andrena (Ptilandrena) erigeniae Robertson, 1891</p><p>Spring Beauty Miner</p><p>Notes: This specialist of spring beauty ( Claytonia virginica) (Hurd 1979; LaBerge 1986b; Wood &amp; Roberts</p><p>2018) has been collected locally in forested landscapes in Connecticut where its host plant occurs.</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF505F25FB58FDAD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF505C75FDA6FCC4.text	1458879AFF84FFFFFF505C75FDA6FCC4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Ptilandrena) nigrihirta (Ashmead 1890)	<div><p>Andrena (Ptilandrena) nigrihirta (Ashmead, 1890)</p><p>Black-haired Miner</p><p>Notes: In addition to the voucher noted below, this northern species was reported from Connecticut by</p><p>Mitchell (1960) and LaBerge &amp; Ribble (1975).</p><p>Material examined. Litchfield Co.: Barkhamsted: “Peoples Forest, Beaver Brook Rd.”, 16 May 1966, coll. S.M. Fullerton, 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00049850 .</p><p>Subgenus Rhacandrena LaBerge</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF505C75FDA6FCC4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF505DDFFBAEFB03.text	1458879AFF84FFFFFF505DDFFBAEFB03.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Rhacandrena) brevipalpis Cockerell. In 1930	<div><p>Andrena (Rhacandrena) brevipalpis Cockerell, 1930</p><p>Short-palped Miner</p><p>Notes: Two female specimens collected by H. L. Viereck in Putnam (Windham County) on 12 July 1905 and determined historically as Andrena robertsoni were re-examined by J. S. Ascher in 2008 and found to be the very similar A. brevipalpis Cockerell. In Connecticut, Andrena brevipalpis has been collected in powerline ROW, Housatonic State Forest, and a coastal wildlife management area (Barn Island Wildlife Management Area), which contains one of Connecticut’s largest remaining unfragmented maritime forests.</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF505DDFFBAEFB03	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF505A9BFD9EF995.text	1458879AFF84FFFFFF505A9BFD9EF995.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Rhacandrena) robertsonii Dalla Torre 1896	<div><p>Andrena (Rhacandrena) robertsonii Dalla Torre, 1896</p><p>Robertson’s Miner</p><p>Notes: Although Andrena robertsonii Dalla Torre was reported in Viereck et al. (1916), the collection information cited matches exactly the collection information on the two specimens reidentified as A. brevipalpis from 1905, as noted above. However, true Andrena robertsonii identified with reference to LaBerge (1977) have been collected in habitats such as sandplain remnants, state forests, wildlife management areas, agricultural land, and a quarry.</p><p>Subgenus Scaphandrena Lanham</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF505A9BFD9EF995	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFFFF50580DFBE7F83A.text	1458879AFF84FFFFFF50580DFBE7F83A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scaphandrena) arabis Robertson 1897	<div><p>Andrena (Scaphandrena) arabis Robertson, 1897</p><p>Mustard Miner</p><p>Notes: This species with an affinity for Brassicaceae (Hurd 1979; Wood &amp; Roberts 2018) has been collected in Connecticut from exotic weeds such as hairy bittercress ( Cardamine hirsuta) and yellow rocket ( Barbarea vulgaris), and from intentionally planted mizuna ( Brassica rapa). It has been found on agricultural land, school grounds, and in suburban settings with forest remnants.</p><p>Subgenus Scrapteropsis Viereck (likely non-monophyletic; see Pisanty et al. 2022)</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFFFF50580DFBE7F83A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF84FFFEFF5059DCFC12FF6F.text	1458879AFF84FFFEFF5059DCFC12FF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scrapteropsis) imitatrix Cresson 1872	<div><p>Andrena (Scrapteropsis) imitatrix Cresson, 1872</p><p>Imitator Miner</p><p>Notes: This species is widespread in Connecticut and has been found on agricultural land, powerline ROW, and state forests. It can be abundant in regional forests in early spring.</p></div>	https://treatment.plazi.org/id/1458879AFF84FFFEFF5059DCFC12FF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF85FFFEFF505B61FC7AF985.text	1458879AFF85FFFEFF505B61FC7AF985.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scrapteropsis) alleghaniensis Viereck 1907	<div><p>Andrena (Scrapteropsis s. l.) alleghaniensis Viereck, 1907</p><p>Alleghany Miner</p><p>Notes: This species and perhaps others in “The alleghaniensis group” (LaBerge 1971) may need to be removed from subgenus Scrapteropsis based on its position in a recent phylogenetic analysis closer to subgenus Rhapandrena than to the type species of Scrapteropsis and of its subjective synonym Mimandrena (Pisanty et al. 2022) . Andrena alleghaniensis has been found on school grounds, agricultural land, sandplain remnants, urban areas, an arboretum, and along the coast at state beaches in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF85FFFEFF505B61FC7AF985	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF85FFFEFF505EB0FE12FD44.text	1458879AFF85FFFEFF505EB0FE12FD44.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scrapteropsis) kalmiae Atwood 1934	<div><p>Andrena (Scrapteropsis) kalmiae Atwood, 1934</p><p>Sheep-laurel Miner</p><p>Notes: LaBerge (1971) reported a single female collected on 26 May 1894 at the Hatch Experiment Station in Connecticut (likely referring to the Connecticut Agricultural Experiment Station in New Haven County, as the facility in Tolland County was called the Storrs Agricultural College at that time), the basis for our listing of New Haven as a probable county for this species. The only other records of this species in Connecticut are reported in Wagner e t al. (2019) from powerline ROW in Ellington ( Tolland County) and South Windsor ( Hartford County). This Kalmia specialist ( LaBerge 1986b) has never been reported from New York State. It seems to be a regional specialty mostly or entirely restricted to New England and eastern Canada.</p><p>Material examined. Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.519&amp;materialsCitation.latitude=41.871" title="Search Plazi for locations around (long -72.519/lat 41.871)">South Windsor</a>: 41.871 -72.519, 28 May 2017, coll. M.F. Veit, 1 ♂, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, UCMS _ ENT 00082289 ; Tolland Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.508&amp;materialsCitation.latitude=41.908" title="Search Plazi for locations around (long -72.508/lat 41.908)">Ellington</a>: 41.908 -72.508, 15 June 2017, coll. M.F. Veit, 1 ♀, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, UCMS _ ENT 00082288 .</p></div>	https://treatment.plazi.org/id/1458879AFF85FFFEFF505EB0FE12FD44	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF85FFFEFF505D5EFC93FABE.text	1458879AFF85FFFEFF505D5EFC93FABE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scrapteropsis) morrisonella Viereck 1917	<div><p>Andrena (Scrapteropsis) morrisonella Viereck, 1917</p><p>Morrison’s Miner</p><p>Notes: Mitchell (1960) records this species for Connecticut, however confusion with Andrena imitatrix, Andrena ilicis, and Andrena fennigeri Viereck may contribute to the scarcity of Connecticut records. The first verified record we could locate was a female collected during a BioBlitz. There have been only two other detections of A. morrisonella in Connecticut since.</p><p>Material examined. Fairfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.45527&amp;materialsCitation.latitude=41.37972" title="Search Plazi for locations around (long -73.45527/lat 41.37972)">Danbury</a>: “Tarrywile Park”, 41.37972 -73.45527, 9 June 2001, coll. “ Hymenoptera Team ”, 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00034950 ; Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.774&amp;materialsCitation.latitude=41.91482" title="Search Plazi for locations around (long -72.774/lat 41.91482)">Simsbury</a>: “Simsbury Airport, Sand-plain”, 41.91482 -72.774, 3 July 2003, coll. J.L. Smith, sex unverified, UCMS, det. J.S. Ascher, UCMS _ ENT 00027405 ; Middlesex Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.47288&amp;materialsCitation.latitude=41.28708" title="Search Plazi for locations around (long -72.47288/lat 41.28708)">Westbrook</a>: “ USFWS Stewart B. McKinney National Wildlife Refuge, Salt Meadow Unit, 733 Old Clinton Road”, 41.28708 -72.47288, 23 May–13 June 2012, coll. K. Vagos, 1 ♀, CAES , det. T. A. Zarrillo 2013, bee bowl, UCMS _ ENT 00052634 .</p></div>	https://treatment.plazi.org/id/1458879AFF85FFFEFF505D5EFC93FABE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF85FFF1FF50581DFE53FF0A.text	1458879AFF85FFF1FF50581DFE53FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Scrapteropsis) ilicis Mitchell 1960	<div><p>Andrena (Scrapteropsis s. l.) ilicis Mitchell, 1960</p><p>Holly Miner</p><p>Notes: A single specimen of this southern species was collected 13 Jun 2009 by M.F. Veit at Keney Park in East Hartford (Hartford County) during Hartford’s first BioBlitz event. Despite its close resemblance to A. imitatrix and its inclusion as a divergent member of “The imitatrix group” within the subgenus by LaBerge (1961) this species may need to be removed from subgenus Scrapteropsis based on its position in a recent phylogenetic analysis closer to the seemingly different subgenera Onagrandrena and Diandrena than to the type species of Scrapteropsis and of its subjective synonym Mimandrena (Pisanty et al. 2022) .</p><p>Subgenus Simandrena Pérez</p></div>	https://treatment.plazi.org/id/1458879AFF85FFF1FF50581DFE53FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF1FF505E8CFEBDFD81.text	1458879AFF8AFFF1FF505E8CFEBDFD81.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Simandrena) nasonii Robertson 1895	<div><p>Andrena (Simandrena) nasonii Robertson, 1895</p><p>Nason’s Miner</p><p>= Andrena hartfordensis Cockerell, 1902: 103 (Connecticut syntype, reported as the holotype by Laberge, 1989, likely based on its labelling).</p><p>Syntype. Female USA: Connecticut: Hartford Co.: Hartford, 31 May 1896, S. N. Dunning (UCMC) .</p><p>Notes: This species has been collected in many diverse habitats throughout Connecticut such as agricultural land, meadows, quarries, coastal wetlands, powerline ROW, forest edges, forest meadows, and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF1FF505E8CFEBDFD81	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF1FF505C19FDA0FC9A.text	1458879AFF8AFFF1FF505C19FDA0FC9A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Simandrena) wheeleri Graenicher 1904	<div><p>Andrena (Simandrena) wheeleri Graenicher, 1904</p><p>Wheeler’s Miner</p><p>Notes: This species was reported to occur in the northwest hills of Connecticut by LaBerge (1989).</p><p>Subgenus Taeniandrena Hedicke</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF1FF505C19FDA0FC9A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF1FF505D7CFDADFAB2.text	1458879AFF8AFFF1FF505D7CFDADFAB2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Taeniandrena) wilkella (Kirby 1802) E F	<div><p>Andrena (Taeniandrena) wilkella (Kirby, 1802)</p><p>Wilke’s Miner</p><p>= Andrena winkleyi Viereck, 1907: 283, 285 (Connecticut holotype).</p><p>Holotype. USA Male: Connecticut: New Haven Co.: Branford, 22 July 1905 (22 May 1905), H. W. Winkley (USNM).</p><p>Notes: This ubiquitous ground-nesting species of Palearctic origin is found throughout Connecticut in habitats such as powerline ROW, a hayfield, a marsh, agricultural land, forest edges, inland dunes, state forests, urban and suburban land, school grounds, and sandy areas. It is the Andrena commonly found visiting Fabaceae in summer in the Eastern United States.</p><p>Subgenus Thysandrena Lanham</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF1FF505D7CFDADFAB2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF1FF505B64FEBDF99A.text	1458879AFF8AFFF1FF505B64FEBDF99A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Thysandrena) bisalicis Viereck 1908	<div><p>Andrena (Thysandrena) bisalicis Viereck, 1908</p><p>Pebbled Miner</p><p>Notes: This willow specialist was the third most common species of Andrena foraging on willow ( Salix) catkins in Mosseler et al. (2020), and it has been collected in Connecticut on its host plant. Most specimen records for this species in Connecticut (84%) were taken between 1958 and 1975, with four known records between 2004 and 2013.</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF1FF505B64FEBDF99A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF1FF50587CFD81F8C8.text	1458879AFF8AFFF1FF50587CFD81F8C8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Thysandrena) w-scripta Viereck 1904	<div><p>Andrena (Thysandrena) w-scripta Viereck, 1904</p><p>W-labrum Miner</p><p>Notes: Most records for this species (92%) were collected between 1964 and 1972, including one record from a feldspar quarry in the town of Portland (Middlesex County). This species was detected again in 1981 by C. T. Maier, likely in the sandplain remnant in “North Haven” (New Haven County), and in 2006 in a powerline ROW. These habitats differ from the boreal forest association described for this species in LaBerge (1986b).</p><p>Subgenus Trachandrena Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF1FF50587CFD81F8C8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8AFFF0FF5059D3FAAFFE5D.text	1458879AFF8AFFF0FF5059D3FAAFFE5D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) ceanothi Viereck 1917	<div><p>Andrena (Trachandrena) ceanothi Viereck, 1917</p><p>Ceanothus Miner</p><p>Notes: This species is associated with sandplain habitats (Goldstein &amp; Ascher 2016), and is known in</p><p>Connecticut from only five records, four of which were collected in powerline ROW.</p><p>Material examined. Hartford Co.: Simsbury: “ Stratton Br. Park ”, 17 May 1961, coll. J.F. Lienesch, 1 ♂, UCMS , det. J.S. Ascher 2011, UCMS _ ENT 00041193; New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.17976&amp;materialsCitation.latitude=41.52768" title="Search Plazi for locations around (long -72.17976/lat 41.52768)">Bozrah</a>: “South Rd.”, 41.52768 - 72.17976, 12 June 2006, coll. N. Bricker &amp; J. Watson, 1 ♀, UCMS , det. J.S. Ascher 2007, UCMS _ ENT 00020564; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.164&amp;materialsCitation.latitude=41.436" title="Search Plazi for locations around (long -72.164/lat 41.436)">Montville</a>: “Fire St.”, 41.436 -72.164, 14 June 2006, coll. N. Bricker &amp; J. Watson, 1 ♀, UCMS , det. J.S. Ascher 2006, UCMS _ ENT 00020815; Tolland Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.48939&amp;materialsCitation.latitude=41.943436" title="Search Plazi for locations around (long -72.48939/lat 41.943436)">Ellington</a>: 41.943434 -72.489386, 1 June 2017, coll. M.F. Veit, 1 ♂, personal collection, det. M.F. Veit ; Windham Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-71.90527&amp;materialsCitation.latitude=41.86944" title="Search Plazi for locations around (long -71.90527/lat 41.86944)">Killingly</a>: “Louisa Viens Dr. (Rd.)”, 41.86944 -71.90527, 12 May 2011, coll. D. Wagner, B. Gagliardi &amp; A. Rodd, 1 ♀, UCMS , det. J.S. Ascher, UCMS _ ENT 00050603 .</p></div>	https://treatment.plazi.org/id/1458879AFF8AFFF0FF5059D3FAAFFE5D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF0FF505C46FD28FD0C.text	1458879AFF8BFFF0FF505C46FD28FD0C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) forbesii Robertson 1891	<div><p>Andrena (Trachandrena) forbesii Robertson, 1891</p><p>Forbes’ Miner</p><p>Notes: This species has been observed in Connecticut in habitats such as powerline ROW, forest edges, meadows, agricultural land, and coastal sites.</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF0FF505C46FD28FD0C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF0FF505C96FE12FB96.text	1458879AFF8BFFF0FF505C96FE12FB96.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) heraclei Robertson 1897	<div><p>Andrena (Trachandrena) heraclei Robertson, 1897</p><p>Cow Parsnip Miner</p><p>Notes: This southern species has a strictly coastal distribution in southern New England and there are only two records for this species in Connecticut, both in coastal counties.</p><p>Material examined. New Haven Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.6822&amp;materialsCitation.latitude=41.2889" title="Search Plazi for locations around (long -72.6822/lat 41.2889)">Guilford</a>: 41.2889 -72.6822, 4 May 2003, coll. J.S. Ascher, 1 ♂, AMNH, det. J.S. Ascher 2012, AMNH _ BEE 00233765; New London Co.: Waterford: “ <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.15613&amp;materialsCitation.latitude=41.39282" title="Search Plazi for locations around (long -72.15613/lat 41.39282)">Douglas St.</a>, grassland B.”, 41.39282 -72.15613, 10–13 May 2007, coll. N.K. Bricker et al., 1 ♀, UCMS, det. J.S. Ascher 2009, bee bowl, UCMS _ ENT 00025688 .</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF0FF505C96FE12FB96	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF0FF505A09FA26FB6D.text	1458879AFF8BFFF0FF505A09FA26FB6D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) hippotes Robertson 1895	<div><p>Andrena (Trachandrena) hippotes Robertson, 1895</p><p>Orange-legged Miner</p><p>Notes: In Connecticut this species has been collected on agricultural land, beach dunes, and school grounds.</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF0FF505A09FA26FB6D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF0FF505AB5FB62FA1D.text	1458879AFF8BFFF0FF505AB5FB62FA1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) miranda Smith 1879	<div><p>Andrena (Trachandrena) miranda Smith, 1879</p><p>Marvelous Miner</p><p>Notes: This northern species was well known in Litchfield County historically (1905-1926) but is rarely detected now. The most recent record was one collected on 25 July 2006 in New London County.</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF0FF505AB5FB62FA1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF0FF505B85FCEAF8BD.text	1458879AFF8BFFF0FF505B85FCEAF8BD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) nuda Robertson 1891	<div><p>Andrena (Trachandrena) nuda Robertson, 1891</p><p>Nude Miner</p><p>Notes: Detections of this southern species in Connecticut have been increasing since it was first discovered in the state in 1962. Notably, since 2005 this species has been collected or observed at least once in all years except 2014, 2015, and 2019. It has been found in sandplains, agricultural land, state parks and forests, and powerline ROW. This distinctive bee seems to be expanding its range regionally as it was historically undetected from the Finger Lakes Region but has been reported there recently (see White et al. 2022) and there are several iNaturalist records (https://www.inaturalist.org/observations/160991248) .</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF0FF505B85FCEAF8BD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8BFFF3FF505965FE2DFDDB.text	1458879AFF8BFFF3FF505965FE2DFDDB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) rehni Viereck 1907	<div><p>Andrena (Trachandrena) rehni Viereck, 1907</p><p>Rehn’s Miner</p><p>Notes: Viereck et al. (1916) reported this species as having a probable presence in Connecticut, and Mitchell</p><p>(1960) reported its presence in Connecticut without details, perhaps just following Viereck’s report. Three females of this uncommon species were captured on 1 July 2019 on the flowers of Castanea spp. at the CAES experimental farm in Hamden (New Haven County) in a chestnut orchard whose trees date back to 1939. Subsequent searches in 2021 in the same location have detected more individuals (T. A. Zarrillo unpublished) in June and July. A single female was also detected in Old Lyme (New London County) at the Roger Tory Peterson Estuary Center in 2021. LaBerge (1973) states that this species has been collected most frequently from the flowers of Ceanothus sp., but Castanea pumila is also listed as a floral record. In Connecticut, Andrena rehni visits the blossoms of both chestnut and chinquapin: C. pumila, C. ozarkensis, C. dentata, C. henryi, C. mollissima, C. sativa, C. crenata, C. dentata x ( C. pumila x C. crenata), and C. seguinii x C. seguinii . The distribution and host specific information for this historically under-recorded bee species is currently under investigation regionally. There is an unverified historical record in BISON from 21 April 1895 deposited at the Snow Entomological Museum Collection. However, Mitchell (1960) reported the flight period for this species to be May through July, and the bloom period in Connecticut for Castanea and Ceanothus occurs in June and July. Therefore, we are excluding this phenologically anomalous record until it can be verified.</p></div>	https://treatment.plazi.org/id/1458879AFF8BFFF3FF505965FE2DFDDB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF88FFF3FF505C3CFD5EFC8B.text	1458879AFF88FFF3FF505C3CFD5EFC8B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) rugosa Robertson 1891	<div><p>Andrena (Trachandrena) rugosa Robertson, 1891</p><p>Rugose Miner</p><p>Notes: This early spring bee has been found across Connecticut in habitats such as powerline ROW, agricultural land, meadows, and upland state forests.</p></div>	https://treatment.plazi.org/id/1458879AFF88FFF3FF505C3CFD5EFC8B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF88FFF3FF505D0CFE99FBBB.text	1458879AFF88FFF3FF505D0CFE99FBBB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) sigmundi Cockerell 1902	<div><p>Andrena (Trachandrena) sigmundi Cockerell, 1902</p><p>Sigmund’s Miner</p><p>Notes: Known habitats in Connecticut for this species include a marsh, powerline ROW, an urban park, and a forest.</p></div>	https://treatment.plazi.org/id/1458879AFF88FFF3FF505D0CFE99FBBB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF88FFF3FF505A5CFD70FADB.text	1458879AFF88FFF3FF505A5CFD70FADB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) spiraeana Robertson 1895	<div><p>Andrena (Trachandrena) spiraeana Robertson, 1895</p><p>Spiraea Miner</p><p>Notes: This species was reported in Viereck et al. (1916) from the village of “Mount Carmel” in Hamden (New Haven County) on 23 June 1902 and has since been detected in all counties except Windham. It has been found in an urban park, powerline ROW, sandplain remnants, coastal wildlife refuge, and a forest adjacent to a lake. While A. spiraeana is polylectic (Wood &amp; Roberts 2018), LaBerge (1973) states this species seems to prefer flowers with small white or yellow clusters, and in Connecticut it has been collected from black cherry ( Prunus serotina), meadowsweet ( Spiraea sp.) and sumac ( Rhus sp.).</p></div>	https://treatment.plazi.org/id/1458879AFF88FFF3FF505A5CFD70FADB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF88FFF3FF505B3CFE32F96C.text	1458879AFF88FFF3FF505B3CFE32F96C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Trachandrena) virginiana Mitchell 1960	<div><p>Andrena (Trachandrena) virginiana Mitchell, 1960</p><p>Virginia Miner</p><p>Notes: This summer flying species was reported in Viereck et al. (1916) [as Andrena obscura Robertson] from Colebrook (Litchfield County) on 21 July 1905. Of note, 81% (n = 39) of all known specimen records (n = 48) for this species were collected in 2006 in a powerline ROW by N. Bricker and J. Watson in Bozrah (New London County). The four most recent records, captured by M. F. Veit in 2017, were also collected in a powerline ROW on meadowsweet ( Spiraea sp.).</p><p>Subgenus Uncertain</p></div>	https://treatment.plazi.org/id/1458879AFF88FFF3FF505B3CFE32F96C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF88FFF3FF5058B6FD47F854.text	1458879AFF88FFF3FF5058B6FD47F854.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena uvularia Mitchell 1960	<div><p>Andrena uvularia e Mitchell, 1960</p><p>Bellwort Miner</p><p>Notes: Two additional females of this species have been captured since Zarrillo et al. (2016) in bee bowls placed in a planting of large-flowered bellwort ( Uvularia grandiflora) at the Connecticut College Arboretum in New London (New London County) between 14–21 May 2019. This species was placed in the subgenus Derandrena prior to phylogenetic analyses by Pisanty et al. (2022).</p></div>	https://treatment.plazi.org/id/1458879AFF88FFF3FF5058B6FD47F854	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF505FA4FE69FD17.text	1458879AFF89FFF2FF505FA4FE69FD17.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calliopsini	<div><p>Calliopsini</p><p>Genus Calliopsis Smith</p><p>Reference: Bossert et al. (2022); Mitchell (1960); Ramos et al. (2022); Shinn (1967)</p><p>Subgenus Calliopsis Smith</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF505FA4FE69FD17	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF505ED5FD53FE35.text	1458879AFF89FFF2FF505ED5FD53FE35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena ziziaeformis Cockerell 1908	<div><p>Andrena ziziaeformis Cockerell, 1908</p><p>Ephemeral Miner</p><p>Notes: This species was reported in Britton (1920) as occurring in Connecticut, and later reported for the state in Ribble (1967). We have not located any of the historical specimens, nor have we collected this species in recent surveys. Like A. uvulariae, this species has been removed from the subgenus Derandrena which is now restricted to California, Oregon, and Baja California.</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF505ED5FD53FE35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF505B98FD0EF9D2.text	1458879AFF89FFF2FF505B98FD0EF9D2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Panurgini	<div><p>Panurgini</p><p>Genus Panurginus Nylander</p><p>Reference: Mitchell (1960); Ramos et al. (2022)</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF505B98FD0EF9D2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF505C8FFDC6FC61.text	1458879AFF89FFF2FF505C8FFDC6FC61.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calliopsis (Calliopsis) andreniformis Smith 1853	<div><p>Calliopsis (Calliopsis) andreniformis Smith, 1853</p><p>Eastern Calliopsis</p><p>Notes: This widespread species is common in Connecticut and is often associated with Fabaceae (Dyer &amp; Shinn 1978) . Calliopsis andreniformis has been found in habitats such as grasslands, powerline ROW, sand quarries, school grounds, and agricultural land.</p><p>Subgenus Verbenapis Cockerell &amp; Atkins</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF505C8FFDC6FC61	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF505DB9FD46FA06.text	1458879AFF89FFF2FF505DB9FD46FA06.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Calliopsis (Verbenapis) nebraskensis Crawford 1902	<div><p>Calliopsis (Verbenapis) nebraskensis Crawford, 1902</p><p>Nebraska Vervain Calliopsis</p><p>Notes: There are two records for this regionally rare species in Connecticut. The male collected in Barkhamsted (Litchfield County) was re-examined by G. Diehl at UCFC in 2021 for this checklist. Another male was collected in a wet meadow during a survey of old fields in Connecticut ( Urban-Mead 2017). Calliopsis nebraskensis has been found in the past very locally in northern New Jersey as well but is otherwise unknown in the Northeastern United States. It is more widespread in the Midwest east to Indiana .</p><p>Material examined. Litchfield Co.: Barkhamsted: “Pleasant Valley”, 17 July 1966, coll. S.M. Fullerton, 1 ♂, UCFC, det. G. Diehl 2021, UCFC 0 287 977; Windham Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-71.9448&amp;materialsCitation.latitude=41.85641" title="Search Plazi for locations around (long -71.9448/lat 41.85641)">Pomfret</a>: “Pomfret Center, nr. Mashmoquet Brook”, 41.85641 -71.9448, 15 July 2013, coll. K. Urban-Mead, 1 ♂, YPM, det. S. Droege and re-examined by T. A. Zarrillo 2022 netted from Verbena hastata, YPM ENT 809277 .</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF505DB9FD46FA06	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF89FFF2FF5058C4FD7AF82C.text	1458879AFF89FFF2FF5058C4FD7AF82C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Panurginus potentillae (Crawford 1916)	<div><p>Panurginus potentillae (Crawford, 1916)</p><p>Cinquefoil Bare-Miner</p><p>Notes: This regionally scarce, small, spring bee is a specialist on cinquefoil ( Potentilla spp.) (Hurd 1979).</p><p>This species reaches its northern range limit in Massachusetts (Veit et al. 2022[“2021”]).</p><p>Material examined. Hartford Co.: Granby: “Gross’ Meadow”, 21 May 1962, coll. J.F. Lienesch, 1 ♂,</p><p>UCMS, det. J.S. Ascher, UCMS _ENT 00032431.</p></div>	https://treatment.plazi.org/id/1458879AFF89FFF2FF5058C4FD7AF82C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF595843FBCFF937.text	1458879AFF8EFFF5FF595843FBCFF937.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrenini	<div><p>Protandrenini</p><p>Genus Protandrena Cockerell</p><p>Reference: Bossert et al. (2022); Mitchell (1960); Ramos et al. (2022); Robinson (2023)</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF595843FBCFF937	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF505ED5FE4EFE3A.text	1458879AFF8EFFF5FF505ED5FE4EFE3A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Perditini	<div><p>Perditini</p><p>Genus Perdita Smith</p><p>Reference: Bossert et al. (2022); Cane (1989); Mitchell (1960); Ramos et al. (2022); Timberlake (1954, 1956, 1958, 1960)</p><p>Subgenus Alloperdita Viereck</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF505ED5FE4EFE3A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF505FDCFE87FC93.text	1458879AFF8EFFF5FF505FDCFE87FC93.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Perdita (Alloperdita) bradleyi Viereck 1907	<div><p>Perdita (Alloperdita) bradleyi Viereck, 1907</p><p>Bradley’s Fairy Bee</p><p>Notes: This rare species has been collected in only three locations in Connecticut, two of which are known for their conservation value as remnant sandplains e.g., Matianuck Sand Dunes Natural Area Preserve, Windsor (Hartford County) and “Cytech Corp. Toelles Road”, Wallingford ( New Haven County). The former location is recognized as a unique ecological community and is managed by The Connecticut Department of Energy and Environmental Protection, and the latter is privately owned land. The third location is in South Windsor ( Hartford County) from at or possibly just southwest of a large sandy area. All but one specimen (n = 12) was collected between 5–9 June 2000 by A. Dorval, D. Marti, and M. Wall. The other was collected on 6 June 2001 by J. Smith and C. Bursey .</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF505FDCFE87FC93	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF505D04FE1EFC26.text	1458879AFF8EFFF5FF505D04FE1EFC26.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Perdita (Alloperdita) novaeangliae Viereck 1907	<div><p>Perdita (Alloperdita) novaeangliae Viereck, 1907</p><p>New England Fairy Bee</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF505D04FE1EFC26	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF505AA4FC95FA5B.text	1458879AFF8EFFF5FF505AA4FC95FA5B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Perdita (Perdita) octomaculata subsp. octomaculata (Say 1824)	<div><p>Perdita (Perdita) octomaculata octomaculata (Say, 1824)</p><p>Eight-spotted Fairy Bee</p><p>Notes: Perdita octomaculata is by far the most encountered Perdita species in Connecticut. The first records for Connecticut were reported in Viereck et al. (1916) on goldenrod ( Solidago s. l.) and asters ( Asteraceae). This common species has been found on goldenrod in sandy locations throughout Connecticut such as inland and coastal dunes and agricultural land with a sand component.</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF505AA4FC95FA5B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF505DF8FE0FFB72.text	1458879AFF8EFFF5FF505DF8FE0FFB72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Perdita novae-angliae Viereck 1907	<div><p>Perdita novae-angliae Viereck, 1907: 394 . (Connecticut syntype).</p><p>Syntype. Female USA: Connecticut: Hartford Co.,“Poquonock“, 27June1905, H.L.Viereck (USNMENT00532866). Timberlake (1958) noted Poquonock, Connecticut (not Hyannis Point, Massachusetts) as the type locality .</p><p>Notes: This specialist on maleberry ( Lyonia lingustrina) was collected from its host plant in Connecticut, with most records (n = 29) spanning 3–30 July in 1976, all captured by G. I. Stage in Stafford (Tolland County).</p><p>Subgenus Perdita Smith</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF505DF8FE0FFB72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8EFFF5FF5058E8FB51F81F.text	1458879AFF8EFFF5FF5058E8FB51F81F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrena (Pterosarus) aestivalis (Provancher 1882) L	<div><p>Protandrena (Pterosarus) aestivalis (Provancher, 1882)</p><p>Aestival Bare-Miner</p><p>Notes: This late season Asteraceae specialist (Sheffield et al. 2014) was first detected in Connecticut by W. E. Britton in the town of Stafford (Tolland County) on 24 August 1905 (n = 22) on goldenrod ( Solidago s. l.). This species was found again in Connecticut in Canaan (Litchfield County) on 29 August 1966 by S. M. Fullerton (n = 3), and on 19 August 2007 by L. Saucier and A. Bouchard at the edge of a northern swamp (n = 1).</p></div>	https://treatment.plazi.org/id/1458879AFF8EFFF5FF5058E8FB51F81F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8FFFF4FF505B85FE75F936.text	1458879AFF8FFFF4FF505B85FE75F936.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthophorini	<div><p>Anthophorini</p><p>Genus Anthophora Latreille</p><p>Reference: Brooks (1983); Mitchell (1962)</p><p>Subgenus Clisodon Patton</p></div>	https://treatment.plazi.org/id/1458879AFF8FFFF4FF505B85FE75F936	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8FFFF4FF505ED5FC5EFEFD.text	1458879AFF8FFFF4FF505ED5FC5EFEFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrena (Pterosarus) andrenoides (Smith 1853) F	<div><p>Protandrena (Pterosarus) andrenoides (Smith, 1853)</p><p>Eastern Bare-Miner</p><p>Notes: This small, late summer flyer has been found on goldenrod ( Solidago s. l.) in Connecticut in powerline ROW, agricultural land, a coastal wildlife refuge, and a meadow.</p></div>	https://treatment.plazi.org/id/1458879AFF8FFFF4FF505ED5FC5EFEFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8FFFF4FF505F25FB62FC8A.text	1458879AFF8FFFF4FF505F25FB62FC8A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrena (Pterosarus) compositarum (Robertson 1893) NH	<div><p>Protandrena (Pterosarus) compositarum (Robertson, 1893)</p><p>Composite Bare-Miner</p><p>Notes: This regionally-scarce species has a southern distribution in New England and was recently found on Gardiners Island (Suffolk County) New York (Ascher et al. 2014) .</p><p>Protandrena (Pterosarus) labrosa (Robertson, 1895)</p><p>Margined Bare-Miner</p><p>Notes: This uncommon species was detected historically in Connecticut in 1967 (n = 12), all specimens collected by M. Favreau in New Canaan (Fairfield County). Protandrena labrosa was rediscovered in Connecticut in Southbury ( New Haven County) in August 2023 by M. W. McCarthy (https://www.inaturalist.org/ observations/179634560) and D. Cappaert (https://www.inaturalist.org/observations/177087456) .</p></div>	https://treatment.plazi.org/id/1458879AFF8FFFF4FF505F25FB62FC8A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8FFFF4FF505D0DFEB9FAD7.text	1458879AFF8FFFF4FF505D0DFEB9FAD7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrena (Pterosarus) pauper (Cresson 1878) NH	<div><p>Protandrena (Pterosarus) pauper (Cresson, 1878)</p><p>Ceanothus Bare-Miner</p><p>Notes: The two known records for this uncommon species in Connecticut are specimens collected in New Haven County in 1902 and 1905, reported in Viereck et al. (1916) [as Pseudopanurgus parvus Robertson]. One of the two was collected from its associated host plant, New Jersey tea ( Ceanothus americanus), a plant associated with xeric, open, sandy, or rocky habitats such as pitch pine-scrub oak barrens and sandplain communities (Wagner et al. 2003). A female was recently collected on New Jersey tea in Massachusetts (Franklin County) on 3 July 2022 by J. Milam in the Montague Plains Wildlife Management Area, which is a restored xeric barren (J. Milam pers. comm). This is the first sighting of P. pauper in New England and vicinity since &lt;1932 (Veit et al. (2022[“2021”]).</p><p>Material examined. New Haven Co.: New Haven: 4 July 1905, coll. H.L. Viereck, 1 ♀, CAES, det. J.S. Ascher 2008, collected from Ceanothus sp., UCMS _ ENT 00028194 ; Hamden: “Mount Carmel”, coll. E.J.S. Moore, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028193 .</p><p>APIDAE</p></div>	https://treatment.plazi.org/id/1458879AFF8FFFF4FF505D0DFEB9FAD7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8FFFF7FF5058E8FD8AFF0A.text	1458879AFF8FFFF7FF5058E8FD8AFF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthophora (Clisodon) terminalis Cresson 1869	<div><p>Anthophora (Clisodon) terminalis Cresson, 1869</p><p>Orange-tipped Wood-Digger</p><p>Notes: This species, which excavates nests in rotting wood, is well represented throughout Connecticut and has been found in habitats such as powerline ROW, agricultural land, upland forests, sandplain remnants, edges of inland wetlands, meadows, and forest fragments in rural neighborhoods.</p><p>Subgenus Lophanthophora Brooks</p></div>	https://treatment.plazi.org/id/1458879AFF8FFFF7FF5058E8FD8AFF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8CFFF7FF505E8CFE5AFD81.text	1458879AFF8CFFF7FF505E8CFE5AFD81.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthophora (Lophanthophora) ursina Cresson 1869	<div><p>Anthophora (Lophanthophora) ursina Cresson, 1869</p><p>Ursine Digger</p><p>Notes: There is only one record for this species in Connecticut. It is generally very rare in the region if not extirpated and there are no recent reports from the few historical sites such as the Albany Pine Barrens in New York (J. S. Ascher, pers. obs.) or Massachusetts (Veit et al. 2022[“2021”]) .</p><p>Material examined. New Haven Co.: New Haven: 15 May 1910, coll. A.B. Champlain, 1 ♂, CAES, det .</p><p>J.S. Ascher 2008, UCMS _ENT 00031233.</p><p>Subgenus Melea Sandhouse</p></div>	https://treatment.plazi.org/id/1458879AFF8CFFF7FF505E8CFE5AFD81	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8CFFF7FF505C19FD64FC0A.text	1458879AFF8CFFF7FF505C19FD64FC0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthophora (Melea) abrupta Say 1838	<div><p>Anthophora (Melea) abrupta Say, 1838</p><p>Abrupt Digger</p><p>Notes: This species is historically known in Connecticut from Meriden (New Haven County) and New Haven ( New Haven County). It is widespread in the Eastern United States but there are few recent records from northeast of New Jersey .</p><p>Material examined. New Haven Co.: New Haven: 24 June 1911, coll. A.B. Champlain, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028384; Meriden: “South Meriden”, 19 April 1911, coll. H. Johnson, 1 ♀, AMNH , det. R. W. Brooks, AMNH _ BEE 00067908 .</p></div>	https://treatment.plazi.org/id/1458879AFF8CFFF7FF505C19FD64FC0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8CFFF7FF505D8CFE73FACE.text	1458879AFF8CFFF7FF505D8CFE73FACE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthophora (Melea) bomboides subsp. bomboides Kirby 1838	<div><p>Anthophora (Melea) bomboides bomboides Kirby, 1838</p><p>Bumblebee-like Digger</p><p>Notes: This species was recently discovered in Connecticut in a pollinator habitat restoration in the northwest hills of the state. The female was collected along the edge of the meadow near the Hollenbeck River.</p><p>Material examined. Litchfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.35354&amp;materialsCitation.latitude=41.97255" title="Search Plazi for locations around (long -73.35354/lat 41.97255)">Canaan</a>: Robbins Swamp Wildlife Management Area, 41.97255 -73.35354, 5-6 July 2023, coll. T . A. Zarrillo, 1 ♀, CAES , det. T. A. Zarrillo 2023, captured in white bee bowl, CAES _ HYM 00019130 .</p><p>Genus Habropoda Smith</p><p>Reference: Mitchell (1962)</p></div>	https://treatment.plazi.org/id/1458879AFF8CFFF7FF505D8CFE73FACE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8CFFF7FF505BD1FE8AF812.text	1458879AFF8CFFF7FF505BD1FE8AF812.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Habropoda laboriosa (Fabricius 1804)	<div><p>Habropoda laboriosa (Fabricius, 1804)</p><p>Blueberry Digger</p><p>Notes: Although uncommon in Connecticut, this species persists in a sandplain remnant in the Connecticut River Valley. The first known record of this species in Connecticut was a male collected in 1902 in New Haven (New Haven County) [determined as Emphoropsis floridana (Smith)] and was noted in Viereck et al. (1916) [as Anthophora floridana Smith]. Females nest in sand to loamy sands (Cane 1994), and strongly prefer Vaccinium ( Ericaceae) pollen (Cane &amp; Payne 1988), although recent work has shown that this species can use other pollen sources (S. Droege pers. comm.). More recently females of this species were collected or observed in 2009, 2017, 2020, and 2022 near or in the Matianuck Sand Dunes Natural Area Preserve (Hartford County), and a male of this species was collected in 2014 on the inflorescence of Japanese pachysandra ( Pachysandra terminalis) in the same general location. This species’ scarcity in Connecticut may be due to the loss of its required sandplain nesting habitat (Woodside 2016). Despite recent survey work in other remnant sandplains across Connecticut, H. laboriosa has not been detected in any location other than Matianuck Sand Dunes Natural Area Preserve. (T. A. Zarrillo unpublished).</p></div>	https://treatment.plazi.org/id/1458879AFF8CFFF7FF505BD1FE8AF812	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8DFFF6FF505E8CFE11FE99.text	1458879AFF8DFFF6FF505E8CFE11FE99.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Apis Linnaeus 1758	<div><p>Genus Apis Linnaeus</p><p>Reference: Engel (1999)</p></div>	https://treatment.plazi.org/id/1458879AFF8DFFF6FF505E8CFE11FE99	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8DFFF6FF505F01FED4FCC5.text	1458879AFF8DFFF6FF505F01FED4FCC5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Apis mellifera Linnaeus 1758	<div><p>Apis mellifera Linnaeus, 1758</p><p>Western Honey Bee</p><p>Notes: This exotic, managed species is widespread and abundant in Connecticut. CAES has had an important role in beekeeping in Connecticut since the early 1900s. Apiary inspections for European foulbrood and American foulbrood have been required by state legislation and conducted by the staff of CAES, under the supervision of the State Entomologist since 1910. Additionally, beekeepers have been required to register with their towns since 1919 (Stafford et al. unpublished). Apiary inspection for pests, parasites, and pathogens of honey bees and registration of hives continue to the present (https://portal.ct.gov/CAES/Bee-Information/Bee-Information/Laws-Pertainingto-Honey-Bees-in-Connecticut). An early educational publication on beekeeping for Connecticut described the Langstroth hive and other beekeeping equipment as well as the diseases of bees and the apiary inspection program and indicated that several different races within the species were already present within the state (Yates 1918). More recent research on A. mellifera at CAES has included genetic analysis of genotypes of Paenibacillus larvae, the causative agent of American foulbrood disease (Dingman 2015), and the analysis of pesticide residues in dead honey bees and brood comb (Anderson &amp; Wojtas 1986), or in pollen collected by honey bees (Stoner &amp; Eitzer 2013, Stoner et al. 2019).</p></div>	https://treatment.plazi.org/id/1458879AFF8DFFF6FF505F01FED4FCC5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8DFFF6FF505AE4FC36F98A.text	1458879AFF8DFFF6FF505AE4FC36F98A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Bombias) auricomus (Robertson 1903) M	<div><p>Bombus (Bombias) auricomus (Robertson, 1903)</p><p>Black-and-gold Bumble Bee</p><p>Notes: This species is rarely detected in Connecticut, having only three historical female records (two from 1919 and one from 1905), and three sightings on iNaturalist in 2021 (https://www.inaturalist.org/observations?place_ id=49&amp;subview=map&amp;taxon_id=198856) (see also Figure 2, C). The 1905 specimen was netted from lilac ( Syringa sp.), and the 2021 observations were visiting wild bergamot ( Monarda spp.). The most recent sightings were in the towns of Milford (New Haven County) in a pollinator garden at The Connecticut Audubon Society Coastal Center at Milford Point near suburban coastal developments, Portland (Middlesex County) in a suburban flower garden largely composed of various Monarda spp. and anise hyssop ( Agastache foeniculum), and Vernon (Tolland County) in a wildflower meadow in the Belding Wildlife Management Area.</p></div>	https://treatment.plazi.org/id/1458879AFF8DFFF6FF505AE4FC36F98A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8DFFE9FF50580CFD2DFEDF.text	1458879AFF8DFFE9FF50580CFD2DFEDF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Bombus) affinis Cresson 1863	<div><p>Bombus (Bombus) affinis Cresson, 1863</p><p>Rusty-patched Bumble Bee</p><p>Notes: This once-familiar species, now listed as “Federally Endangered” in the United States (United States Fish and Wildlife Service 2017) and “Special Concern” in Connecticut (Connecticut Department of Energy and Environmental Protection 2015b), is evidently extirpated from the state. The last known specimen was a female collected between 3–5 June 1997 in the town of Guilford (New Haven County) by C. T. Maier. Host records for Connecticut include greater burdock ( Actium lappa), summersweet ( Clethra alnifolia), quince ( Cydonia sp.), golden currant ( Ribes auruem), white clover ( Trifolium repens), apple ( Malus spp.) and cranberry ( Vaccinium macrocarpon), in habitats such as agricultural land, school grounds, a red maple swamp, and among ericaceous shrubs in an acidic bog with red spruce ( Picea rubens). Wagner et al. (2014a, 2019) reported the absence of B. affinis in their studies of ROW in Connecticut, and CAES wild bee surveys conducted from 2010–2021 throughout Connecticut (unpublished), and the lack of records on community science portals from Connecticut and vicinity (see Veit et al. 2022[“2021”]) reaffirm its absence in the state. Its distinct coloration make it a likely candidate to be detected if it reappears here, as an increasing number of community science “bee watchers” on biodiversity portals such as iNaturalist and BugGuide routinely report it from where it persists such as the Upper Midwest and more locally in West Virginia and western Virginia.</p></div>	https://treatment.plazi.org/id/1458879AFF8DFFE9FF50580CFD2DFEDF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF8DFFF6FF505DDDFE41FB32.text	1458879AFF8DFFF6FF505DDDFE41FB32.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombini	<div><p>Bombini</p><p>Genus Bombus Latreille</p><p>Reference: Koch et al. (2018); Laverty &amp; Harder (1988); Lhomme et al. (2021); Milliron (1971, 1973a, 1973b); Mitchell (1962); Williams et al. (2008, 2014)</p><p>Subgenus Bombias Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF8DFFF6FF505DDDFE41FB32	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF92FFE9FF505FC0FD97FB68.text	1458879AFF92FFE9FF505FC0FD97FB68.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Bombus) terricola Kirby 1837	<div><p>Bombus (Bombus) terricola Kirby, 1837</p><p>Yellow-banded Bumble Bee</p><p>Notes: This North American species has been listed as Vulnerable on the International Union for the Conservation of Nature’s (IUCN) Red List (Hatfield et al. 2015a) and is listed as “Threatened” in Connecticut (Connecticut Department of Energy and Environmental Protection 2015b). It has suffered an average decline of 49.94% (including relative abundance, range, and persistence) across its entire range (Hatfield et al. 2015a). This species has been recorded historically from six of Connecticut’s eight counties and was once common across most of the Northeast and Upper Midwest of the United States. Two Connecticut records were documented in Viereck et al. (1916) from Branford (New Haven County) and Colebrook (Litchfield County), and another record from 1904 was found at AMNH by the authors (a female collected in Litchfield (Litchfield County) on 26 August 1904). Since Zarrillo et al. (2016), 20 more individuals have been captured and 10 individuals have been observed on iNaturalist in the highlands of Litchfield County. Since the first recent detection in 2018 in the town of Canaan (Litchfield County), 29 individuals have been recorded in six neighboring towns. In 2023, Bombus terricola was observed in the town of Litchfield by K. Testerman on iNaturalist, which is the southernmost record in recent years for the state (https://www.inaturalist.org/observations/170866067). In Connecticut this species has been found in inland wetlands such as Beckley Bog and Bingham Pond (Litchfield County), shrubby meadows, roadside stands of flowers, ROW, and forested habitats. Floral records from Connecticut include Bishop’s goutweed ( Aegopodium podagraria), pussy willow ( Salix discolor), European linden ( Tilia cf. europaea), summersweet ( Clethra alnifolia), anise-scented goldenrod (S olidago odora), goldenrod ( Solidago s. l.), king of the meadow ( Thalictrum pubescens), white meadowsweet ( Spiraea alba), annual fleabane ( Erigeron annus), common milkweed ( Asclepias syriaca) and wild bergamot ( Monarda sp.).</p><p>Subgenus Cullumanobombus Vogt</p></div>	https://treatment.plazi.org/id/1458879AFF92FFE9FF505FC0FD97FB68	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF92FFE9FF505AB2FE45F999.text	1458879AFF92FFE9FF505AB2FE45F999.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Cullumanobombus) griseocollis (De Geer 1773) F	<div><p>Bombus (Cullumanobombus) griseocollis (De Geer, 1773)</p><p>Brown-belted Bumble Bee</p><p>Notes: This species is widespread and common throughout Connecticut, found in pollinator gardens, agricultural land, powerline ROW, grasslands, dunes, and coastal scrub. This species was found in 23 Connecticut towns before the year 2000 and 80 towns after the year 2000, with 43 of the additional towns from observations on iNaturalist (https://www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=120215).</p><p>Subgenus Psithyrus Lepeletier</p></div>	https://treatment.plazi.org/id/1458879AFF92FFE9FF505AB2FE45F999	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF92FFE9FF505801FE22F855.text	1458879AFF92FFE9FF505801FE22F855.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Psithyrus) ashtoni (Cresson 1864) F	<div><p>Bombus (Psithyrus) ashtoni (Cresson, 1864)</p><p>Ashton’s Cuckoo-Bumble Bee</p><p>Notes: This species is listed in Connecticut as “Special Concern” (Connecticut Department of Energy and Environmental Protection 2015b) and is of great conservation interest, as there are few recent records of this social parasite in the Northeastern United States (Dibble et al. 2017; Richardson et al. 2018; Veit et al. 2022[“2021”]) and no recent records in Connecticut (last recorded in 1992). Records for this species in Connecticut are limited, having only nine occurrences in five towns, seven of which were before the year 1925. Williams et al. (2014) stated in a popular identification guide that Bombus ashtoni and Bombus bohemicus “appear to be parts of the same species” so these may comprise a single, widespread, naturally Holarctic species. This synonymy has been accepted or at least noted in subsequent sources, but some authorities prefer to await more rigorous documentation of this synonymy in the technical literature.</p></div>	https://treatment.plazi.org/id/1458879AFF92FFE9FF505801FE22F855	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF93FFE8FF505ED5FDA7FDDD.text	1458879AFF93FFE8FF505ED5FDA7FDDD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Psithyrus) citrinus (Smith 1854) H	<div><p>Bombus (Psithyrus) citrinus (Smith, 1854)</p><p>Lemon Cuckoo-Bumble Bee</p><p>Notes: The junior synonym Apathus contiguous Cresson, 1863, was described in part from a Connecticut syntype but a male from Delaware was designated as lectotype by the author (Cresson, 1916). This social parasite’s preliminary IUCN category is “Least Concern” (Hatfield et al. 2014), however its status in Connecticut is uncertain. The most recent sighting is a single iNaturalist observation on 14 August 2020 at the Stewart B. McKinney National Wildlife Refuge (NWR) in the town of Westbrook (Middlesex County). This location has contributed bee records to the statewide wild bee monitoring program since 2011, yet this species has not been collected on premises during seasonal bee bowl trapping activities. Prior to this sighting, this species had not been detected in the state since 2010 despite the persistence of two of its hosts, Bombus impatiens and Bombus vagans (Hurd 1979) and its routine occurrence in New York State including New York City (https://www.inaturalist.org/observations?place_id=48&amp;s ubview=table&amp;taxon_id=198859).</p></div>	https://treatment.plazi.org/id/1458879AFF93FFE8FF505ED5FDA7FDDD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF93FFE8FF505CC5FD89FB62.text	1458879AFF93FFE8FF505CC5FD89FB62.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Psithyrus) flavidus subsp. appalachiensis Lhomme and Hines 2021	<div><p>Bombus (Psithyrus) flavidus appalachiensis Lhomme and Hines, 2021</p><p>Yellowish Cuckoo-Bumble Bee</p><p>Notes: This regionally uncommon cleptoparasite of Pyrobombus (Lhomme et al. 2021; Williams et al. 2014), previously known as B. fernaldae and historically as Psithyrus fernaldae, has only been collected in Litchfield County in Connecticut, although its hosts are commonly detected throughout the state in many diverse habitats. There are historical records from 1911, 1912, and 1913, and then a 72-year gap before this species was detected again in 1985. This species has been detected most recently in survey work in locations where B. terricola has also been collected. Males have been found visiting white sweet clover ( Melilotus albus), black knapweed ( Centaurea nigra), and common milkweed ( Asclepias syriaca) in habitats such as powerline ROW within a state forest and open meadows near forest edges. The range of this species seems to be increasing in Connecticut (being detected in only two towns prior to 2000, and five towns since 2010) and regionally, as evidenced by an increase in iNaturalist records throughout New England, including New York (https://www.inaturalist.org/observations?place_id=48&amp;su bview=table&amp;taxon_id=541839) and Vermont (https://www.inaturalist.org/observations?place_id=47&amp;subview=ta ble&amp;taxon_id=541839).</p><p>Subgenus Pyrobombus Dalla Torre</p></div>	https://treatment.plazi.org/id/1458879AFF93FFE8FF505CC5FD89FB62	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF93FFE8FF505AB4FE0EFAF1.text	1458879AFF93FFE8FF505AB4FE0EFAF1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) bimaculatus Cresson 1863	<div><p>Bombus (Pyrobombus) bimaculatus Cresson, 1863</p><p>Two-spotted Bumble Bee</p></div>	https://treatment.plazi.org/id/1458879AFF93FFE8FF505AB4FE0EFAF1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF93FFEBFF505889FE9DFEFB.text	1458879AFF93FFEBFF505889FE9DFEFB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) impatiens Cresson 1863	<div><p>Bombus (Pyrobombus) impatiens Cresson, 1863</p><p>Common Eastern Bumble Bee</p><p>Notes: Consistent with its common name, Bombus impatiens is one of the most abundant bumble bee species in Connecticut and has the most records of all bee species observed in Connecticut on iNaturalist (https:// www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=630955&amp;view=species). This pivotal pollinator of many agricultural crops (Kleijn et al. 2015) is likely under-represented in museum collections and/or databases relative to its true abundance because it is so ubiquitous (Zarrillo &amp; Stoner 2019), rendering community science observations on digital biodiversity portals an additional tool for documenting its prevalence. Bombus impatiens was the most abundant pollinator on vegetable farms in Connecticut ( Stoner, 2013) , with 2,445 individuals found visiting alternative floral resources. Stoner (2020) also reported 9,115 individuals visiting pumpkin and squash flowers over the years of the study, making it the most abundant pollinator of pumpkins and squash in Connecticut .</p></div>	https://treatment.plazi.org/id/1458879AFF93FFEBFF505889FE9DFEFB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF93FFE8FF505B29FDDCF911.text	1458879AFF93FFE8FF505B29FDDCF911.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus bimaculatus Cresson 1863	<div><p>Bombus bimaculatus Cresson, 1863: 392 (Connecticut holotype).</p><p>Holotype. Male USA: Connecticut: E. Norton (cited as “probably lost” by Cresson, 1916).</p><p>Notes: Bombus bimaculatus is one of the earliest bumble bee species to emerge in the spring in Connecticut and is found commonly throughout the state in many diverse environments such as sandplains, agricultural land, meadows, quarries, marsh, bogs, a coastal wildlife refuge, beach dunes, powerline ROW, and forests. The Connecticut type is evidently missing from ANSP and is presumed lost. It has been replaced with a male neotype from Massachusetts deposited at USNM (https://collections.nmnh.si.edu/search/ento/?ark=ark:/65665/ 35bb9c5e93a894307bed74ac350d6d3f3) .</p></div>	https://treatment.plazi.org/id/1458879AFF93FFE8FF505B29FDDCF911	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF90FFEBFF505F1CFE18FE0E.text	1458879AFF90FFEBFF505F1CFE18FE0E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) perplexus Cresson 1863	<div><p>Bombus (Pyrobombus) perplexus Cresson, 1863</p><p>Perplexing Bumble Bee</p></div>	https://treatment.plazi.org/id/1458879AFF90FFEBFF505F1CFE18FE0E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF90FFEBFF505F90FEF3FC7D.text	1458879AFF90FFEBFF505F90FEF3FC7D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) perplexus Cresson 1863	<div><p>Bombus (Pyrobombus) perplexus Cresson, 186: 391 (Connecticut holotype).</p><p>Holotype. Male USA: Connecticut: E. Norton (lost?).</p><p>Notes: The Connecticut type is evidently missing from the ANSP and presumed lost. It has been replaced with a neotype from Massachusetts deposited at USNM (http://n 2t.net/ark:/65665/3fd2779fe-c0c3-4156-9bcac7b6c761b6b9). This common species has been collected in many diverse habitats across Connecticut, such as urban parks and gardens, sandplain remnants, meadows, bogs, swamps, coastal scrub, powerline ROW, grassy fields, and forests, and has been collected from a wide range of host plants in Connecticut. The flight season of this species in Connecticut extends later than reported in Williams et al. (2014), with 18 November the latest date for a B. perplexus queen in Connecticut (https://www.inaturalist.org/observations/101417680). Most records for this species in Connecticut (n = 592) are dated on or before 28 August, but beginning in 2001 this species has been observed on the wing in Connecticut in late September (n = 5) and October (n = 7), and, in 2021, in November (n = 4). It is unclear whether these late sightings are related to increased observations on iNaturalist or to effects of climate change .</p></div>	https://treatment.plazi.org/id/1458879AFF90FFEBFF505F90FEF3FC7D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF90FFEBFF505DA5FCE8FAF1.text	1458879AFF90FFEBFF505DA5FCE8FAF1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) sandersoni Franklin 1913	<div><p>Bombus (Pyrobombus) sandersoni Franklin, 1913</p><p>Sanderson’s Bumble Bee</p><p>Notes: This under-recorded species is associated with forest edges, fens, swamps, and acidic bogs in the northern part of the state and has been collected from white clover ( Trifolium repens) and black chokeberry ( Aronia melanocarpa) in Connecticut. The true status of this species in Connecticut and in New England is unclear, as it has been overlooked in collections and museum databases and under-reported in photo-based community science databases due to its similarity in appearance to B. vagans and B. perplexus (New England populations of B. sandersoni and B. vagans are often identical in color pattern). Records are increasing as better identification criteria are understood (Goldstein &amp; Ascher 2016; Milam et al. 2020).</p></div>	https://treatment.plazi.org/id/1458879AFF90FFEBFF505DA5FCE8FAF1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF90FFEBFF505B29FAB3F8AD.text	1458879AFF90FFEBFF505B29FAB3F8AD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) ternarius Say 1837	<div><p>Bombus (Pyrobombus) ternarius Say, 1837</p><p>Tricolored Bumble Bee</p><p>Notes: In Connecticut this northern species (see Figure 2, D) is known mostly from Litchfield County. More recently this species has been detected in Tolland County in 2010 and 2017, in New Haven County in 2012 (Zarrillo et al. 2016), and Litchfield County in 2021 (https://www.inaturalist.org/observations/92951878). The most recent New Haven County record is unusual in that it was collected in an agricultural habitat at the CAES experimental farm, which is not usually a preferred habitat for this species (Williams et al. 2014). Other collection locations include Beckley Bog in Norfolk (Litchfield County) and Bingham Pond in Salisbury. Specimens from Connecticut have been netted from spotted knapweed ( Centaurea stoebe), wild bergamot ( Monarda fistulosa), narrowleaf mountain mint ( Pycanthemum tenuifolium), goldenrod ( Solidago s. l.), spearmint ( Mentha spicata), white clover ( Trifolium repens), bush clover ( Lespedeza sp.), and huckleberry ( Gaylussacia baccata).</p></div>	https://treatment.plazi.org/id/1458879AFF90FFEBFF505B29FAB3F8AD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF90FFEAFF505975FD83FEB4.text	1458879AFF90FFEAFF505975FD83FEB4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Pyrobombus) vagans subsp. vagans Smith 1854	<div><p>Bombus (Pyrobombus) vagans vagans Smith, 1854</p><p>Half-black Bumble Bee</p><p>Notes: This species has been collected in a variety of habitats in Connecticut such as a coastal wildlife refuge, meadows, sandplain remnants, limestone quarries, powerline ROW, forests, agricultural land, and inland wetlands such as bogs and swamps. It is underrecorded beyond subgenus in community science datasets due to its visual similarity with Bombus sandersoni .</p><p>Subgenus Subterraneobombus Vogt</p></div>	https://treatment.plazi.org/id/1458879AFF90FFEAFF505975FD83FEB4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF91FFEAFF505F6EFDE5FC2F.text	1458879AFF91FFEAFF505F6EFDE5FC2F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Subterraneobombus) borealis Kirby 1837	<div><p>Bombus (Subterraneobombus) borealis Kirby, 1837</p><p>Northern Amber Bumble Bee</p><p>Notes: Until recently, this northern bumble bee was known from Connecticut only from a single female collected on 12 August 1932 in Falls Village (Litchfield County) by J. P. Johnson. Surprisingly, two females were collected on 26 June 2010 in Suffield (Hartford County) by R. Ferreira, who noticed a nest entrance under a piece of plywood on a dry, grassy berm near shrubs in a fallow field. Richardson et al. (2018) found that B. borealis has a significant positive correlation with grass and shrub habitat. The recent records and nest location constitute a new southernmost range extension in New England for this boreal bee, and records for this species in southern, warmer regions of Vermont appear to have increased in recent decades (S. Hardy pers. comm.). This is an exception to the most recent works by Kerr et al. (2015) and Soroye et al. (2020) that predict northern bumble bee species to be receding as the climate warms .</p><p>Material examined. Hartford Co.: Suffield: “ DEEP property, Babs Road”, 26 June 2010, coll. R . Ferreira, 2 ♀, CAES , det. T. A. Zarrillo 2020, UCMS _ ENT 00077809, UCMS _ ENT 00077810 ; Litchfield Co.: Canaan: “Falls Village”, 12 August 1932, coll. J.P. Johnson, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028388 .</p><p>Subgenus Thoracobombus Dalla Torre</p></div>	https://treatment.plazi.org/id/1458879AFF91FFEAFF505F6EFDE5FC2F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF91FFEAFF505DF0FEFEF9AF.text	1458879AFF91FFEAFF505DF0FEFEF9AF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Thoracobombus) fervidus (Fabricius 1798)	<div><p>Bombus (Thoracobombus) fervidus (Fabricius, 1798)</p><p>Golden Northern Bumble Bee</p><p>Notes: This species has been listed as Vulnerable on the International Union for the Conservation of Nature’s (IUCN) Red List (Hatfield et al. 2015b). It has also been designated a “Species of Greatest Conservation Need” (SGCN) in New Hampshire (New Hampshire Fish and Game Department 2015) and Hardy et al. (2021) report it is possibly on the decline in Vermont. Recent floral preference trials by K. A. Stoner (unpublished) at the CAES experimental farm in Hamden (New Haven County) detected this species in 2019, 2020, and 2021 visiting Zinnia violacea and Zinnia marylandica . Other floral records in Connecticut include morning glory ( Ipomoea sp.), golden currant ( Ribes aureum), lilac ( Syringa sp.), white clover ( Trifolium repens), common thistle ( Circium vulgare), and gill-over-the-ground ( Glechoma hederacea [as Nepeta hederacea]). This species has been found in Connecticut in agricultural land, sandy areas, powerline ROW, a limestone quarry, town parks, and on the grounds of an urban seaside university. Richardson et al. (2018) found B. fervidus to be positively associated with grasslands and cultivated crops. This species is still found routinely in New York including New York City (https://www. inaturalist.org/observations?place_id=48&amp;subview=table&amp;taxon_id=52774) in addition to Connecticut (https:// www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=52774), so regional trends in its status remain unclear.</p></div>	https://treatment.plazi.org/id/1458879AFF91FFEAFF505DF0FEFEF9AF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF91FFEDFF505870FA9EFE17.text	1458879AFF91FFEDFF505870FA9EFE17.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Bombus (Thoracobombus) pensylvanicus (De Geer 1773) F	<div><p>Bombus (Thoracobombus) pensylvanicus (De Geer, 1773)</p><p>American Bumble Bee</p><p>Notes: This well-known species was historically common throughout the eastern and central United States, and was at one time widespread throughout Connecticut, detected in pastures, fields, and meadows on flowers such as morning glory ( Ipomoea sp.) and greater burdock ( Arctium lappa). This species was also reported on black currant ( Ribes nigrum), apple ( Malus domestica [as Pyrus malus]), and common blackberry ( Rubus allegheniensis [as Rubus nigrobaccus]) in Britton &amp; Viereck (1906) [as B. pensylvanicus DeGeer and B. americanorum Fabricius] although vouchers were unable to be located. Bombus pensylvanicus has declined in the northern parts of its range in the United States (Williams et al. 2014), and it was last detected in Connecticut in 2006 at the Belding Wildlife Management Area in Vernon (Tolland County). The lack of records is notable given the extent of wild bee surveys in its preferred habitats, open farmland and fields (Williams et al. 2014), across the state since 2009. There is a petition to list B. pensylvanicus as an endangered species under the United States Endangered Species Act (Center for Biological Diversity &amp; the Bombus Pollinators Association of Law Students 2021), and its status in Connecticut should be reviewed in upcoming endangered species assessments. Despite its genuine scarcity in Connecticut (found in 23 towns prior to the year 2000 and with only the one record noted above since) and in New England generally, this species, however, has the seventh most records globally (n = 41,208; sixth among Bombus species) of all wild (non- Apis) bee species (n = 4,619) globally as reported on iNaturalist (accessed 16 September 2024) and has the fourth most records (n=40,451, most recent) of any wild bee species from North America and the United States raising doubts about whether it can be considered one of the most threatened taxa globally or nationally.</p></div>	https://treatment.plazi.org/id/1458879AFF91FFEDFF505870FA9EFE17	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF96FFEDFF595F8FFBF2FDE3.text	1458879AFF96FFEDFF595F8FFBF2FDE3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Emphorini	<div><p>Emphorini</p><p>Genus Ptilothrix Smith</p><p>Reference: Flórez-Gómez &amp; Danforth (2023); Martins et al. (1996); Mitchell (1962)</p></div>	https://treatment.plazi.org/id/1458879AFF96FFEDFF595F8FFBF2FDE3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF96FFEDFF505AACFA93F8DC.text	1458879AFF96FFEDFF505AACFA93F8DC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeoloides pilosulus (Cresson 1878) F	<div><p>Epeoloides pilosulus (Cresson, 1878)</p><p>Pilose Yellow Loosestrife-Cuckoo</p><p>Notes: There are two early records from 1911 for this rare social parasite in New Haven County in Connecticut in the towns of Meriden and New Haven (the latter was digitized but not located—UCMS_ENT 00031791). Epeoloides pilosulus was also reported in Viereck et a l. (1916) [as Viereckella pilosula] from the town of Brookfield (Fairfield County), and in Britton (1920) [as Epeoloides pilosula]. There is another early specimen from Colebrook (Litchfield County) collected by W. M. Wheeler, with no specified date. This species was recently discovered in 2006 in powerline ROW in Bozrah (New London County), detailed in Wagner and Ascher (2008). Epeoloides pilosulus has since been added to Connecticut’s endangered species list (Connecticut Department of Energy and Environmental Protection 2015b) and is a regional species of greatest conservation need in four eastern states (United States Geological Survey 2015), although a recent uptick in detections regionally is encouraging (Veit et al. 2022[“2021”]).</p><p>Material examined. Litchfield Co.: Colebrook: coll. W.M. Wheeler, 1 ♂, UCMS , det. T. A. Zarrillo 2021, UCMS _ ENT 00082278 ; New Haven Co.: Meriden: “South Meriden”, 1911, coll. H. Johnson, 1 ♀, AMNH, det. J.S. Ascher 2005, AMNH _ BEE 00010828; New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.17985&amp;materialsCitation.latitude=41.4907" title="Search Plazi for locations around (long -72.17985/lat 41.4907)">Bozrah</a>: “Route 163, Plot 4 ROW”, 41.4907 -72.17985, 22 June 2006, coll. N. Bricker &amp; J. Watson, 1 ♀, UCMS, det. J.S. Ascher 2006, UCMS _ ENT 00082279 .</p></div>	https://treatment.plazi.org/id/1458879AFF96FFEDFF505AACFA93F8DC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF96FFEDFF505A07FE73FB6B.text	1458879AFF96FFEDFF505A07FE73FB6B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osirini	<div><p>Osirini</p><p>Genus Epeoloides Giraud</p><p>Reference: Mitchell (1962)</p></div>	https://treatment.plazi.org/id/1458879AFF96FFEDFF505A07FE73FB6B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF96FFEDFF505C34FE3AFB9F.text	1458879AFF96FFEDFF505C34FE3AFB9F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ptilothrix bombiformis (Cresson 1878) F	<div><p>Ptilothrix bombiformis (Cresson, 1878)</p><p>Hibiscus Turret Bee</p><p>Notes: This species has been collected in good numbers (n = 26) in New Haven County since Zarrillo et al. (2016), and an additional four individuals have been found in Fairfield, Middlesex, and Hartford Counties. Of note, three of these individuals were seen at their nest entrances on baseball fields, at Frances Veitch Memorial Field in New Haven (New Haven County) and at East Hartford High School (Hartford County). The nests were constructed in hard packed soil/sand in direct sunlight with minimal vegetation nearby. This species has been collected most often in bee bowls in Connecticut (n = 26) at the Pond Lily Nature Preserve, CAES New Haven campus, and CAES Lockwood Farm (New Haven County), and the Bartlett Arboretum (Fairfield County), with one individual captured visiting its host plant, rose mallow ( Hibiscus moscheutos) (Hurd 1979), at Hammonasset Beach State Park (Middlesex County).</p></div>	https://treatment.plazi.org/id/1458879AFF96FFEDFF505C34FE3AFB9F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF97FFECFF505E93FE57FE2C.text	1458879AFF97FFECFF505E93FE57FE2C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eucerini	<div><p>Eucerini</p><p>Genus Eucera Scopoli</p><p>Reference: Mitchell (1962); Timberlake (1969)</p><p>Subgenus Synhalonia Patton</p></div>	https://treatment.plazi.org/id/1458879AFF97FFECFF505E93FE57FE2C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF97FFECFF505FF5FF45FD69.text	1458879AFF97FFECFF505FF5FF45FD69.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eucera (Synhalonia) atriventris (Smith 1854) NH	<div><p>Eucera (Synhalonia) atriventris (Smith, 1854)</p><p>Black-tailed Longhorn</p><p>Notes: This species is known historically in Connecticut from Tolland and New Haven Counties but was recently observed in Windham County on iNaturalist (https://www.inaturalist.org/observations/180138298), 92 years after the last known detection. Veit et al. (2022[“2021”]) note that this species can still be found regularly in the village of Florence (Hampshire County, Massachusetts) where it visits flowers of native wild lupine, Lupinus perennis .</p></div>	https://treatment.plazi.org/id/1458879AFF97FFECFF505FF5FF45FD69	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF97FFECFF505CB1FD92FB75.text	1458879AFF97FFECFF505CB1FD92FB75.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eucera (Synhalonia) hamata (Bradley 1942) NL	<div><p>Eucera (Synhalonia) hamata (Bradley, 1942)</p><p>Bent-Spurred Longhorn</p><p>Notes: A recent record of this vernal long-horned bee was identified on iNaturalist in Bedford Hills, New York, close to the Connecticut border (https://www.inaturalist.org/observations/4854578). This, along with other recent records (Zarrillo et al. 2016), further suggests that this species may be expanding its range into the northeast .</p><p>Material examined. See Zarrillo et al. (2016)</p><p>Genus Melissodes Latreille</p><p>Reference: Freitas et al. (2023); LaBerge (1956a, 1956b, 1961); Mitchell (1962)</p><p>Subgenus Apomelissodes LaBerge</p></div>	https://treatment.plazi.org/id/1458879AFF97FFECFF505CB1FD92FB75	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF97FFECFF505AADFDA7FA63.text	1458879AFF97FFECFF505AADFDA7FA63.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Apomelissodes) apicatus Lovell and Cockerell 1906	<div><p>Melissodes (Apomelissodes) apicatus Lovell and Cockerell, 1906</p><p>Pickerelweed Longhorn</p><p>Notes: This specialist species has been collected from its host plant, pickerelweed ( Pontederia cordata) in</p><p>Connecticut near inland wetlands.</p><p>Subgenus Eumelissodes LaBerge</p></div>	https://treatment.plazi.org/id/1458879AFF97FFECFF505AADFDA7FA63	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF97FFECFF505BB4FA8DF857.text	1458879AFF97FFECFF505BB4FA8DF857.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) agilis Cresson 1879	<div><p>Melissodes (Eumelissodes) agilis Cresson, 1878, sensu LaBerge, 1961</p><p>Agile Sunflower Longhorn</p><p>Notes: LaBerge (1961) lists four localities for this species in Connecticut (Colebrook, Litchfield County; Storrs, Tolland County; Wallingford, New Haven County; Westville, New Haven County), and we have found one Tolland County specimen record for M. agilis determined by LaBerge at SEMC. We are citing this species as valid for Connecticut on LaBerge’s authority and are only including records from the revision in our county checklist (Table 2). Although M. agilis and M. trinodis are routinely separated in parts of their range such as Minnesota (Portman et al. 2023) and Manitoba (Gibbs et al. 2023), their status is less well known in the Northeastern United States. We cannot reliably separate potential M. agilis specimens from M. trinodis at this time, and our doubts about species delimitation between these species in New York and New England extend to determinations in the revision and to records from Massachusetts (Veit et al. 2022[“2021”]). Further integrative taxonomic studies are needed to confirm the range limits of M. agilis since at present few investigators are confident in separating northeastern M. agilis from M. trinodis, and the dark wings veins of regional examples are more consistent with the latter.</p></div>	https://treatment.plazi.org/id/1458879AFF97FFECFF505BB4FA8DF857	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF505ED5FBD7FEFD.text	1458879AFF94FFEFFF505ED5FBD7FEFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) denticulatus Smith 1854	<div><p>Melissodes (Eumelissodes) denticulatus Smith, 1854</p><p>Eastern Ironweed Longhorn</p><p>Notes: This specialist species is commonly found on its host plant, New York ironweed ( Vernonia noveboracensis), across Connecticut in habitats such as agricultural land and meadows.</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF505ED5FBD7FEFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF505F25FC62FC2F.text	1458879AFF94FFEFFF505F25FC62FC2F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) dentiventris Smith 1854	<div><p>Melissodes (Eumelissodes) dentiventris Smith, 1854</p><p>Tooth-vented Longhorn</p><p>Notes: Melissodes dentiventris is relatively numerous in the Southeastern United States but is not well known from New England, where it reaches its northeastern range limit ( Mitchell 1962). There are only five historical records for this rarely-collected late-season composite specialist in Connecticut, three reported in Viereck et al. (1916) which were not available for re-examination ( Branford, New Haven County, 3 August 1904, collected by Henry W. Winkley; New Haven [“‘ Westville ”], New Haven County, 3 August 1905, collected by W. E. Britton on Veronica sp.; Vernon [“ Rockville ”], Tolland County, 23 August 1905, collected by H. L. Viereck) and two specimen records reported below. All but one of the Connecticut records come from coastal cities, which parallels its limited distribution in Massachusetts (Veit et al. 2022[“2021”]). This species was recently documented on Tuckernut Island (Nantucket County, Massachusetts) on iNaturalist, observed on 29 August 2021 (https://www.inaturalist. org/observations/93158406) .</p><p>Material examined. New London Co.: Waterford: 11 September 1933, coll. N. Turner, sex unverified,</p><p>UCMS, det. J.S. Ascher, UCMS _ENT 00030352, UCMS _ENT 00030353.</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF505F25FC62FC2F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF505DF0FDF8FB32.text	1458879AFF94FFEFFF505DF0FDF8FB32.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) desponsus Smith 1854	<div><p>Melissodes (Eumelissodes) desponsus Smith, 1854</p><p>Thistle Longhorn</p><p>Notes: This thistle-associated species has been collected in powerline ROW, wet meadows, fields, and along railroad tracks. Until recently it and a related species from Western North America were placed in subgenus Heliomelissodes (Freitas et al. (2023).</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF505DF0FDF8FB32	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF505AE4FE9DFAE2.text	1458879AFF94FFEFFF505AE4FE9DFAE2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) druriellus (Kirby 1802) F	<div><p>Melissodes (Eumelissodes) druriellus (Kirby, 1802)</p><p>Drury’s Longhorn</p><p>Notes: This species has been collected in habitats such as sandplain remnants and powerline ROW in</p><p>Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF505AE4FE9DFAE2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF505B34FB86F9CA.text	1458879AFF94FFEFFF505B34FB86F9CA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) illatus Lovell and Cockerell 1906	<div><p>Melissodes (Eumelissodes) illatus Lovell and Cockerell, 1906</p><p>New England Longhorn</p><p>Notes: There are few records for this northern species in Connecticut, with the most recent specimens captured in Eastford (Windham County) during a study of old fields in Connecticut (K. Urban-Mead unpublished). This species has also been found on a quarry top and has been collected from black-eyed Susan ( Rudbeckia sp.) in meadows in Connecticut. It may be underrecorded due to identification difficulties .</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF505B34FB86F9CA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF94FFEFFF5058CCFAD4F816.text	1458879AFF94FFEFFF5058CCFAD4F816.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) subillatus LaBerge 1961	<div><p>Melissodes (Eumelissodes) subillatus LaBerge, 1961</p><p>Echinacea Longhorn</p><p>Notes: This specialist of composites was not listed in the early Connecticut checklists (Britton 1920; Britton 1938; Viereck et al. 1916) as it had not yet been described. However, there are two historical specimens of M. subillatus determined by LaBerge at MCZ collected in Colebrook (Litchfield County) by W. M. Wheeler with no verbatim date. We have records of other species collected by Wheeler in the period spanning 1911 to 1934; therefore, M. subillatus was collected in Connecticut earlier than reported in Table 2 although the exact year is unknown.</p></div>	https://treatment.plazi.org/id/1458879AFF94FFEFFF5058CCFAD4F816	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFEEFF505BA7FDA1F9CB.text	1458879AFF95FFEEFF505BA7FDA1F9CB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ammobatoidini	<div><p>Ammobatoidini</p><p>Genus Holcopasites Ashmead</p><p>Reference: Hurd &amp; Linsley (1972)</p></div>	https://treatment.plazi.org/id/1458879AFF95FFEEFF505BA7FDA1F9CB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFEEFF5058CCFEFEF8DF.text	1458879AFF95FFEEFF5058CCFEFEF8DF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Holcopasites calliopsidis subsp. calliopsidis (Linsley 1943) H	<div><p>Holcopasites calliopsidis calliopsidis (Linsley, 1943)</p><p>Eastern Furrowed-Cuckoo</p><p>Notes: There have been eight more detections of this cleptoparasite of Calliopsis andreniformis in Connecticut since Zarrillo et al. (2016) in locations such as agricultural land, powerline ROW, and suburban neighborhoods.</p></div>	https://treatment.plazi.org/id/1458879AFF95FFEEFF5058CCFEFEF8DF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFEEFF505ED5FE47FDAA.text	1458879AFF95FFEEFF505ED5FE47FDAA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Eumelissodes) trinodis Robertson 1901	<div><p>Melissodes (Eumelissodes) trinodis Robertson, 1901</p><p>Dark-veined Longhorn</p><p>Notes: LaBerge (1961) lists three localities for this species in Connecticut (Colebrook, Litchfield County; Storrs, Tolland County; Westville, New Haven County), and we have found two records for M. trinodis determined by LaBerge at AMNH. The remainder of our material cannot be reliably separated from M. agilis at this time (see species account for M. agilis). However, we suspect that this is the species found very commonly visiting sunflowers across the region, including New York City, an opinion reflected in (provisional) species identifications based on images at iNaturalist and BugGuide.</p><p>Subgenus Melissodes Latreille</p></div>	https://treatment.plazi.org/id/1458879AFF95FFEEFF505ED5FE47FDAA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFEEFF505C6CFD80FCCD.text	1458879AFF95FFEEFF505C6CFD80FCCD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Melissodes) bimaculatus subsp. bimaculatus (Lepeletier 1825) F	<div><p>Melissodes (Melissodes) bimaculatus bimaculatus (Lepeletier, 1825)</p><p>Two-spotted Longhorn</p><p>Notes: This distinctively black-colored species, which is not a composite specialist unlike many congeners, is commonly seen in pollinator gardens, agricultural land, and meadows, and has also been collected in powerline ROW and a limestone quarry.</p><p>Genus Peponapis Robertson</p><p>Subgenus Peponapis Robertson s. l.</p></div>	https://treatment.plazi.org/id/1458879AFF95FFEEFF505C6CFD80FCCD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFEEFF505DD4FE78FA31.text	1458879AFF95FFEEFF505DD4FE78FA31.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Peponapis (Peponapis) pruinosa (Say 1837)	<div><p>Peponapis (Peponapis) pruinosa (Say, 1837)</p><p>Pruinose Squash Bee</p><p>Notes: Dorchin et al. (2018) proposed a broad concept of Eucera that includes squash bees whereas Freitas et al. (2023) recognized the latter as comprising a single genus Xenoglossa . However, here we choose to retain Peponapis as valid pending further phylogenetic study, in particular improved resolution of New World species that have been included in Tetraloniella (Michener, 2007) or Xenoglossodes (Hurd, 1979) . Stoner (2020) studied pollination of pumpkin and winter squash in Connecticut and found that the three primary bee species visiting these crops, P. pruinosa, B. impatiens, and A. mellifera, together provided sufficient pollination services for full fruit set and yield across a wide range of farms with different practices. The relative contribution of these species varied widely, however, among different farms, and even from year to year at the same farm. Although there were indications that the numbers of P. pruinosa visiting these crops were declining over the four years of the study (Stoner 2020), calculations made using Tefler et al. (2002) show that the relative range of this species in Connecticut is stable and/or increasing.</p></div>	https://treatment.plazi.org/id/1458879AFF95FFEEFF505DD4FE78FA31	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF95FFE1FF5059C0FDFDFEEF.text	1458879AFF95FFE1FF5059C0FDFDFEEF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Holcopasites illinoiensis (Robertson 1891) NH	<div><p>Holcopasites illinoiensis (Robertson, 1891)</p><p>Illinois Furrowed-Cuckoo.</p><p>Notes: There are only two known historical records for this species in Connecticut, and it seems to have disappeared entirely from the Northeastern United States.</p><p>Material examined. New Haven Co.: New Haven: 30 June 1905, coll. B.H. Walden, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00030635; Milford, 1 July 1919, coll. M.P. Zappe, sex unverified, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00030636 .</p></div>	https://treatment.plazi.org/id/1458879AFF95FFE1FF5059C0FDFDFEEF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9AFFE1FF505F36FDA0FDB8.text	1458879AFF9AFFE1FF505F36FDA0FDB8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolini	<div><p>Epeolini</p><p>Genus Epeolus Latreille</p><p>Reference: Onuferko (2017, 2018)</p></div>	https://treatment.plazi.org/id/1458879AFF9AFFE1FF505F36FDA0FDB8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9AFFE1FF505C63FEB4FC26.text	1458879AFF9AFFE1FF505C63FEB4FC26.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus autumnalis Robertson 1902	<div><p>Epeolus autumnalis Robertson, 1902</p><p>Autumn Cellophane-Cuckoo</p><p>Notes: This relatively large and late-flying species, presumably a cleptoparasite of Colletes compactus compactus, is known in Connecticut from a historical record in Litchfield (Litchfield County) and a more recent record in Montville (New London County) in powerline ROW.</p><p>Material examined. New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.23333&amp;materialsCitation.latitude=41.4325" title="Search Plazi for locations around (long -72.23333/lat 41.4325)">Montville</a>: “powerline ROW pole 347 corridor”, 41.4325 - 72.23333, 3 September 2012, coll. F. R . Morrison, M. Gould &amp; J. Sanchez, 1 ♂, UCMS, det. J.S. Ascher, UCMS _ ENT 00050905 ; Litchfield Co.: Litchfield: 30 September 1901, 1 ♀, AMNH, det. J.S. Ascher 2011, AMNH _ BEE 00145716 .</p></div>	https://treatment.plazi.org/id/1458879AFF9AFFE1FF505C63FEB4FC26	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9AFFE1FF505DF9FD1FFA8E.text	1458879AFF9AFFE1FF505DF9FD1FFA8E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus bifasciatus Cresson 1864	<div><p>Epeolus bifasciatus Cresson, 1864</p><p>Two-banded Cellophane-Cuckoo</p><p>Notes: This cleptoparasitic species was first collected in Connecticut in 1922 and reported in Britton (1938). Epeolus bifasciatus was rediscovered in the state in 2021 near a planting of ground cherry ( Physalis sp.), a host plant of its likely bee host ( Colletes latitarsis), on an organic farm in the town of Ridgefield (Fairfield County).</p><p>Material examined. Fairfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.46268&amp;materialsCitation.latitude=41.29179" title="Search Plazi for locations around (long -73.46268/lat 41.29179)">Ridgefield</a>: “The Hickories Eco-Type Farm, 136 Lounsbury Road”, 41.29179 -73.46268, 26 August 2021, coll. A. Bolduc, 1 ♀, CAES , det. T. A. Zarrillo 2021, netted from Asclepias tuberosa, UCMS _ENT 00077624; New Haven Co.: North Haven, 6 August 1922, coll. B.H. Walden, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028386 .</p></div>	https://treatment.plazi.org/id/1458879AFF9AFFE1FF505DF9FD1FFA8E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9AFFE1FF505B10FB89F913.text	1458879AFF9AFFE1FF505B10FB89F913.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus inornatus Onuferko 2018	<div><p>Epeolus inornatus Onuferko, 2018</p><p>Inornate Cellophane-Cuckoo</p><p>Notes: This recently described species (Onuferko 2018) had previously been confused with E. ilicis which has a southeastern distribution. It is likely a cleptoparasites of Colletes productus .</p><p>Material examined. Tolland Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.1791&amp;materialsCitation.latitude=41.7496" title="Search Plazi for locations around (long -72.1791/lat 41.7496)">Stafford</a>: “ <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.1791&amp;materialsCitation.latitude=41.7496" title="Search Plazi for locations around (long -72.1791/lat 41.7496)">Hampden Rd.</a>, 1.4 mi N of Bradway Pond ”, 9 July 1976, coll. G.I. Stage, 1 ♂, GSC, det. J.S. Ascher 2018, netted from Lyonia ligustrina, UCMS _ENT 00027148; Windham: “ Windham Airport ”, 41.7496 -72.1791, 7 July 2023, coll. H. Baranowski, 2 ♂, UCMS, det. M.F. Veit and re-examined by T. A. Zarrillo 2023, netted from Symphyotrichum sp. in a pine barren .</p></div>	https://treatment.plazi.org/id/1458879AFF9AFFE1FF505B10FB89F913	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9AFFE1FF50588BFE12F841.text	1458879AFF9AFFE1FF50588BFE12F841.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus lectoides Robertson 1901	<div><p>Epeolus lectoides Robertson, 1901</p><p>Sumac Cellophane-Cuckoo</p><p>Notes: This cleptoparasite of Colletes nudus is known in Connecticut from a single female collected in a coastal town.</p><p>Material examined. New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.24361&amp;materialsCitation.latitude=41.31778" title="Search Plazi for locations around (long -72.24361/lat 41.31778)">East Lyme</a>: “near jct. of US Hwy 1 and Liberty Way”, 41.31778 -72.24361, 18 August 2009, coll. C. T. Maier, 1 ♀, CAES, det. J.S. Ascher, netted from Eupatorium hyssopifolium, UCMS _ENT 00039143 .</p></div>	https://treatment.plazi.org/id/1458879AFF9AFFE1FF50588BFE12F841	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505ED5FC4FFED3.text	1458879AFF9BFFE0FF505ED5FC4FFED3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus pusillus Cresson 1864	<div><p>Epeolus pusillus Cresson, 1864</p><p>Dwarf Cellophane-Cuckoo</p><p>Notes: Epeolus pusillus has been collected in habitats such as sandplain remnants and coastal beaches in Connecticut. A female was collected by C. T. Maier on 22 September 2009 at Long Beach Park in Stratford (Fairfield County) while visiting seaside goldenrod ( Solidago sempervirens) .</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505ED5FC4FFED3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505FC4FD1BFD54.text	1458879AFF9BFFE0FF505FC4FD1BFD54.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Epeolus scutellaris Say 1824	<div><p>Epeolus scutellaris Say, 1824</p><p>Notch-backed Cellophane-Cuckoo</p><p>Notes: While this species only has 11 records in Connecticut, it is widely distributed, likely due to an association with the common Colletes simulans armatus, and has been detected in every county except Fairfield County. It has been found in sandplain remnants, a coastal state park, and powerline ROW, and visiting anise-scented goldenrod ( Solidago odora) and American burnweed ( Erechtites hieraciifolius).</p><p>Genus Triepeolus Robertson</p><p>Reference: Mitchell (1962); Rightmyer (2008)</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505FC4FD1BFD54	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505D4FFC16FB39.text	1458879AFF9BFFE0FF505D4FFC16FB39.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus cressonii (Robertson 1897) NL	<div><p>Triepeolus cressonii (Robertson, 1897)</p><p>Cresson’s Longhorn-Cuckoo</p><p>Notes: This cleptoparasite of Melissodes was reported from Connecticut in Mitchell (1962) and is also known in the state from two recent records in New London County.</p><p>Material examined. New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.2242&amp;materialsCitation.latitude=41.4347" title="Search Plazi for locations around (long -72.2242/lat 41.4347)">Montville</a>: “ 0.18 km SSE jct. State Route 85 and Beckwith Road”, 41.4347 -72.2242, 2 August 2018, coll. C. T . Maier, 1 ♂, CAES, det. S. Droege and re-examined by T. A. <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.11389&amp;materialsCitation.latitude=41.37696" title="Search Plazi for locations around (long -72.11389/lat 41.37696)">Zarrillo</a> 2022, netted from Solidago odora, UCMS _ENT 00082094; Waterford: “Harkness State Park, 275 Great Neck Road”, 41.37696 -72.11389, 30 July–6 August 2019, coll. J. Durrell &amp; A. Bolduc, 1 ♂, CAES, det. S. Droege and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00082095 .</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505D4FFC16FB39	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505AE3FC95FA2D.text	1458879AFF9BFFE0FF505AE3FC95FA2D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus donatus (Smith 1854) L	<div><p>Triepeolus donatus (Smith, 1854)</p><p>Thistle Longhorn-Cuckoo</p><p>Notes: This species was reported for Connecticut in Cresson (1864a) [as Epeolus donatus Smith] and Viereck et al. (1916) and has since been collected in habitats including a powerline ROW and a wet meadow. Specimens from 1905, 1906, and 1914 have been vetted. It has been netted from thistle ( Cirsium sp.) host plants of Melissodes desponsus, which it parasitizes, in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505AE3FC95FA2D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505BF6FD44F959.text	1458879AFF9BFFE0FF505BF6FD44F959.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus helianthi (Robertson 1897) F	<div><p>Triepeolus helianthi (Robertson, 1897)</p><p>Sunflower Longhorn-Cuckoo</p><p>Notes: This species, likely associated with Melissodes, is known in Connecticut from only two records, one collected in a powerline ROW.</p><p>Material examined. Fairfield Co.: New Canaan: 26 August 1951, coll. M. Statham, 1 ♂, AMNH, det. J.S. Ascher 2013, AMNH _ BEE 0025422; Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.53557&amp;materialsCitation.latitude=41.8428" title="Search Plazi for locations around (long -72.53557/lat 41.8428)">South Windsor</a>: 41.84280187 -72.53556581, 4 August 2017, coll. M.F. Veit, 1 ♀, personal collection, det. M.F. Veit.</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505BF6FD44F959	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9BFFE0FF505942FC32F842.text	1458879AFF9BFFE0FF505942FC32F842.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus lunatus (Say 1824) F	<div><p>Triepeolus lunatus (Say, 1824)</p><p>Lunate Longhorn-Cuckoo</p><p>Notes: This species was reported for Connecticut in Cresson (1864a) [as Epeolus lunatus Say] and Viereck et al. (1916), and historical specimens have been confirmed. It has since been collected in habitats such as agricultural land, powerline ROW, and sandy areas, and has been netted from black-eyed Susan ( Rudbeckia hirta) in Connecticut. It is likely associated with Melissodes bimaculatus .</p></div>	https://treatment.plazi.org/id/1458879AFF9BFFE0FF505942FC32F842	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF505BCEFD6DF984.text	1458879AFF98FFE3FF505BCEFD6DF984.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomadini	<div><p>Nomadini</p><p>Genus Nomada Scopoli</p><p>Reference: Cockerell 1908; Droege et al. (2010a); Mitchell (1962); Odanaka et al. (2022); Schwarz &amp; Gusenleitner (2004); Sheffield et al. (2009); Straka et al. (2024) .</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF505BCEFD6DF984	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF50581FFC81F86D.text	1458879AFF98FFE3FF50581FFC81F86D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada armatella Cockerell 1903	<div><p>Nomada armatella Cockerell, 1903 (ruficornis group)</p><p>Yellow-backed Nomad</p><p>Notes: The status of this species is poorly understood because only the male is described by Mitchell (1960). Due to variation in the color of the scutellum, atypical males of N. armatella and N. cressonii can potentially be confused by those relying on Mitchell’s keys. Pronotal color also seems to vary, and further documentation of structural characters of both sexes is needed. Placement of N. armatella sister to N. depressa rather than close to N. cressonii by Odonaka et al. (2022) suggests that their concept of this species may differ from ours (see above).</p><p>Material examined. New Haven Co.: New Haven: “Lockwood Farm”, 41.405833 -72.904722, 13 May</p><p>2010, coll. T. A. Zarrillo, 1 ♂, CAES, det. K. Odanaka 2021.</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF50581FFC81F86D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF505ED5FB9DFE35.text	1458879AFF98FFE3FF505ED5FB9DFE35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus michiganensis Mitchell 1962	<div><p>Triepeolus michiganensis Mitchell, 1962</p><p>Michigan Longhorn-Cuckoo</p><p>Notes: Two specimens from Colebrook (Litchfield County) Connecticut were chosen to be a paratype and an allotype for this species as reported in Mitchell (1962) and are deposited at MCZ. Mitchell (1962) reported two collection events by W. M. Wheeler (female allotype collected on 28 July 1921; male paratype collected on 8 August 1922). It is likely associated with Melissodes, potentially including M. subillatus .</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF505ED5FB9DFE35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF505FEDFB95FCBF.text	1458879AFF98FFE3FF505FEDFB95FCBF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus obliteratus Graenicher 1911	<div><p>Triepeolus obliteratus Graenicher, 1911</p><p>Obliterated Longhorn-Cuckoo</p><p>Notes: There are only two records for this cleptoparasitic species in Connecticut, one collected in an old orchard at the University of Connecticut, and another during a study of old fields in eastern Connecticut.</p><p>Material examined. Tolland Co.: Mansfield: “Storrs, old UCONN Orchard”, 41.7822 -72.2148, 30 July 2009, coll. R. E. Roehm, 1 ♀, UCMS, det. J.S. Ascher 2013, UCMS _ ENT 00055457; Windham Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.121826&amp;materialsCitation.latitude=41.949257" title="Search Plazi for locations around (long -72.121826/lat 41.949257)">Eastford</a>: “ Center Pike”, 41.949255 -72.121825, 17 July 2013, coll. K. Urban-Mead, 1 ♀, YPM, det. S. Droege and re-examined by T. A. Zarrillo 2022, netted from Rudbeckia hirta, YPM ENT 809558 .</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF505FEDFB95FCBF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF595D60FCCEFBC3.text	1458879AFF98FFE3FF595D60FCCEFBC3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus pectoralis (Robertson 1897) F	<div><p>Triepeolus pectoralis (Robertson, 1897)</p><p>Goldenrod Longhorn-Cuckoo</p><p>Notes: This cleptoparasite of Melissodes druriellus is known in Connecticut from only four records, of which three below were confirmed.</p><p>Material examined. Fairfield Co.: Westport: 18 July 1925, coll. L. Lacey, 1 ♂, AMNH, det. M.G. Rightmyer 2006, AMNH _ BEE 00140194; Hartford Co.: Windsor: 1951, coll. J.B. Kring, 1 ♂, CAES, det. S. Droege 2020, UCMS _ ENT 00077811; New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.21401&amp;materialsCitation.latitude=42.43512" title="Search Plazi for locations around (long -72.21401/lat 42.43512)">Montville</a>: “Route 85”, 42.43512 -72.21401, 1 September 2012, coll. F. Morrison, 1 ♀, personal collection, det. J.S. Ascher.</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF595D60FCCEFBC3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF98FFE3FF505ADBFEDEFAD7.text	1458879AFF98FFE3FF505ADBFEDEFAD7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Triepeolus remigatus (Fabricius 1804)	<div><p>Triepeolus remigatus (Fabricius, 1804)</p><p>Squash Longhorn-Cuckoo</p><p>Notes: This cleptoparsite of Peponapis pruinosa was first reported for Connecticut and New England by Zarrillo et al. (2016). Twelve additional individuals have been collected in Connecticut since then, all from agricultural fields.</p></div>	https://treatment.plazi.org/id/1458879AFF98FFE3FF505ADBFEDEFAD7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505ED5FB62FE6C.text	1458879AFF99FFE2FF505ED5FB62FE6C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada articulata Smith 1854	<div><p>Nomada articulata Smith, 1854 ( erigeronis group)</p><p>Articulated Nomad</p><p>Notes: This species is expected to be a widespread and numerous cleptoparasite of the genus Agapostemon (Gibbs et al. 2017) . Although its status in historical publications is generally uncertain due to potential confusion with N. australis, Connecticut vouchers as early as 1904 have been restudied and verified. Community science images frequently documented N. erigeronis group species (this or N. australis), but species identification from photos is challenging. This species has been collected in habitats across Connecticut such as powerline ROW, agricultural land, coastal beaches and dunes, suburban and urban areas, and the edge of a swamp.</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505ED5FB62FE6C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505FB0FAE8FD51.text	1458879AFF99FFE2FF505FB0FAE8FD51.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada australis Mitchell 1962	<div><p>Nomada australis Mitchell, 1962 ( erigeronis group)</p><p>Southern Nomad</p><p>Notes: This species is generally less commonly found than N. articulata and was overlooked historically due to confusion with that species. There are only nine records of N. australis in Connecticut, as opposed to at least 110 records for N. articulata . Even with so few records, N. australis has been detected in a variety of habitats in Connecticut, such as agricultural land, inland dunes, coastal scrub, grassland, and a suburban neighborhood.</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505FB0FAE8FD51	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505D4AFAFDFB2A.text	1458879AFF99FFE2FF505D4AFAFDFB2A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada bella Cresson 1863	<div><p>Nomada bella Cresson, 1863 (ruficornis group, bella subgroup)</p><p>Belle Nomad</p><p>Notes: Reported as “declining” in New Hampshire (Matthiasson &amp; Rehan 2019), but this species, as identified by males, was one of the most numerous early spring-flying Nomada found at Ithaca, New York (ca. early 2000s), and elsewhere in the region by J. S. Ascher (unpublished).There are 81 records for N. bella in Connecticut (of those 71% are females identified by J. S. Ascher), and 95% were collected after the year 2000. Due to identification difficulties, especially of females, this species is likely to be under-recorded, and digitized records cannot be relied upon to fully capture its distribution and abundance. In Connecticut, it is best known from inland dunes, powerline ROW, and a plantation of eastern white pine ( Pinus strobus) with an understory of blueberry ( Vaccinium spp.) and black huckleberry ( Gaylussacia baccata) at the Pachaug State Forest in Voluntown (New London County).</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505D4AFAFDFB2A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505AEDFC28FA73.text	1458879AFF99FFE2FF505AEDFC28FA73.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada bethunei Cockerell 1903	<div><p>Nomada bethunei Cockerell, 1903 (ruficornis group)</p><p>Bethune’s Nomad</p><p>Notes: Generally a scarce bee although likely under-recorded prior to the recent association of the sexes ( Droege et al. 2010a) which resulted in synonymy of N. pseudops, the name used by Mitchell (1962) for the female of the species. In addition to the records for New Haven County annotated in Zarrillo et al. (2016), this species has also been found at the edge of Robbins Swamp in Canaan ( Litchfield County) on 26 May 2007 by D. L. Wagner and in town of Wilton (Fairfield County) on 3 June 2019 by C. T. Maier .</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505AEDFC28FA73	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505BA4FD47F8A2.text	1458879AFF99FFE2FF505BA4FD47F8A2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada ceanothi Cockerell 1907	<div><p>Nomada ceanothi Cockerell 1907 (ruficornis group)</p><p>Ceanothus Nomad</p><p>Notes: Two records of this rare cleptoparasite are confirmed for New Haven County only in Connecticut .</p><p>Material examined. New Haven Co.: Orange: 21 Jun 2002, coll. M. Schwarz, 1 ♀, J.S. Ascher det. 2023, in his reference collection; New Haven: “Lockwood Farm, 890 Evergreen Avenue”, 41.40590 -72.90433, 23 June 2021, coll. J. Durrell, 1 ♂, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo (using Mitchell 1962) in 2023, netted from Castanea henryi, CAES _HYM 00019290 .</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505BA4FD47F8A2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE2FF505975FED1F833.text	1458879AFF99FFE2FF505975FED1F833.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada composita Mitchell 1962	<div><p>Nomada composita Mitchell, 1962 (ruficornis group)</p><p>Composite Nomad</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE2FF505975FED1F833	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF99FFE5FF5059E4FC46FE6B.text	1458879AFF99FFE5FF5059E4FC46FE6B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada composita Mitchell 1962	<div><p>Nomada composita Mitchell, 1962: 408 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: Litchfield Co.: Colebrook (MCZ).</p><p>Notes: Under-recorded due to identification difficulties, but S. Droege (pers. comm.) has recognized it from numerous sites across the region. However, material determined by him from New York and Canada proved on reexamination to pertain to two species one of which may be the morphospecies reported as Nomada sp. aff. composita Mitchell by Veit et al. (2022[“2021”]); see also Ascher et al. (2014) which differs in having an all red T 3 (lacking yellow lateral spots) and in having a wider prepygidial fimbria with yellower hairs (vs. narrower and more silvery in true N. composita) and subtle differences in spines at the apex of the hind femur. In Connecticut this species is best known from powerline ROW (Wagner et al. 2014a) where two voucher specimens confirmed to be true N. composita upon reexamination were found to vary in color, with one having small yellow sublateral spots on T 4 and some diffuse yellow on T 5 medially whereas the other had T 4- T 5 red.</p></div>	https://treatment.plazi.org/id/1458879AFF99FFE5FF5059E4FC46FE6B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9EFFE5FF505FACFB95FD53.text	1458879AFF9EFFE5FF505FACFB95FD53.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada cressonii Robertson 1893	<div><p>Nomada cressonii Robertson, 1893 (ruficornis group)</p><p>Cresson’s Nomad</p><p>Notes: Apparently this is one of the more abundant Nomada species in the Northeastern United States, but its true status is somewhat obscured by ongoing identification difficulties. Connecticut records come from habitats such as powerline ROW, agricultural land, northern bogs, inland sand plain remnants, wildlife management areas, coastal meadows, suburban/urban neighborhoods, forest edges, and an arboretum.</p></div>	https://treatment.plazi.org/id/1458879AFF9EFFE5FF505FACFB95FD53	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9EFFE5FF505D44FA99FBD7.text	1458879AFF9EFFE5FF505D44FA99FBD7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada cuneata (Robertson 1903)	<div><p>Nomada cuneata (Robertson, 1903), sensu Mitchell, 1962 (ruficornis group, bella subgroup)</p><p>Cuneate Nomad</p><p>Notes: This species as interpreted by Mitchell (1962) is one of the more distinctive of the “bidentate” species (Gibbs et al. 2017a) annotated here as comprising a “ bella subgroup,” and is one of the more numerous large-bodied species flying later in spring in the region, especially at “northern” sites in Connecticut where its presumed Andrena (Melandrena) hosts are abundant. As noted by Gibbs et al. (2017a), Robertson (1903) described four forms of N. cuneata, but their diverse color patterns suggest that these forms, including reports of these from Connecticut by Viereck et al. (1916, as var.), are not conspecific with N. cuneata sensu Mitchell as recognized here. Further study of types is required to confirm application of names for N. cuneata and its putative forms.</p></div>	https://treatment.plazi.org/id/1458879AFF9EFFE5FF505D44FA99FBD7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9EFFE5FF505AC8FD5CFADB.text	1458879AFF9EFFE5FF505AC8FD5CFADB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada denticulata Robertson 1902	<div><p>Nomada denticulata Robertson, 1902 (ruficornis group)</p><p>Denticulate Nomad</p><p>Notes: Both sexes can be identified by experienced workers, and males possess distinctive antennae, yet the species is still likely under-recorded. It has been detected in seven of the eight counties in Connecticut in habitats such as powerline ROW and a large, municipal park.</p></div>	https://treatment.plazi.org/id/1458879AFF9EFFE5FF505AC8FD5CFADB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9EFFE5FF505B3CFC63F868.text	1458879AFF9EFFE5FF505B3CFC63F868.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada depressa Cresson 1863	<div><p>Nomada depressa Cresson, 1863 (ruficornis group)</p><p>Large-patched Nomad</p><p>= Nomada hoodiana Cockerell, 1903, unpublished synonymy of Snelling; = Nomada depressicauda Cockerell, 1908; = Nomada carinicauda Cockerell, 1921, unpublished synonymy of Snelling; = Nomada media Mitchell, 1962, unpublished synonymy of Snelling.</p><p>Notes: Like very many Nomada species this one is surely under-recorded regionally, especially males. As there seem to be a reasonable number of recent (1990s–present) records in collections, examined from pertinent “northern” sites in the region, including Connecticut (n = 11), it is hard to endorse an assessment of the species as “declining” in New Hampshire (Matthiasson &amp; Rehan 2019). We are unable to reliably separate N. skinneri Cockerell, described as “belonging to the group of N. depressa ” by its author, from N. depressa, so we regard a nontype Connecticut report of the former as hypothetical (see below). A voucher from Tuell et al. (2009) from Ottawa County Michigan (4.5 miles NW of Holland, 21 Apr 2005, coll. J. K. Tuell et al.) initially identified as a Nomada cf. depressa proved upon reexamination to be a N. sobrina male instead. It has a yellow pronotum (see image in Gibbs et al. 2017a). As discussed above, grouping of this species with a Nomada (Heminomada) species by Odanaka et al. (2022) contrasts with its placement in Nomada (Nomada) by Hurd (1979).</p></div>	https://treatment.plazi.org/id/1458879AFF9EFFE5FF505B3CFC63F868	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE4FF505ED5FC26FDAA.text	1458879AFF9FFFE4FF505ED5FC26FDAA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada electa Cresson 1863	<div><p>Nomada electa Cresson, 1863 (ruficornis group)</p><p>Elect Nomad</p><p>Notes: Connecticut is the type locality of the male of this species, collected and deposited in the collection of E. Norton (Cresson 1863) and now presumably lost. The female lectotype is from Illinois and is deposited at ANSP. Nomada electa was later reported for Connecticut in Britton (1938), however, the voucher could not be located for reexamination. More recently, a single male was collected in northern Fairfield County in 2002. This species is expected to occur only where populations exist of its likely host Andrena braccata (Ascher et al. 2014) .</p><p>Material examined. Fairfield Co.: New Fairfield: 41.48333 -73.48333, 9 September 2002, coll. J.S.</p><p>Ascher, 1 ♂, AMNH, det. J.S. Ascher 2013, AMNH _ BEE 00271284 .</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE4FF505ED5FC26FDAA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE4FF505C6CFEEEFC3C.text	1458879AFF9FFFE4FF505C6CFEEEFC3C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada electella Cockerell 1903	<div><p>Nomada electella Cockerell, 1903 (ruficornis group)</p><p>Georgia Nomad</p><p>Notes: This species is scarce in collections. It was discovered in Georgia and has since been found in the mid-Atlantic in Virginia and North Carolina (Wake County, new information) and in New England including Rhode Island and Massachusetts. The first and only Connecticut record supports an early summer flight season for this species (available records are from June-July) .</p><p>Material examined: New London Co.: Norwich, 7 July 1993, coll. H. T. Facundo, 1 ♀, det. J.S. Ascher</p><p>2023, NUS-IDL.</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE4FF505C6CFEEEFC3C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE4FF505DE7FBFAFB8B.text	1458879AFF9FFFE4FF505DE7FBFAFB8B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada florilega Lovell and Cockerell 1905	<div><p>Nomada florilega Lovell and Cockerell, 1905 (ruficornis group)</p><p>Floral Nomad</p><p>Notes: This species is reported by Mitchell (1962) to occur in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE4FF505DE7FBFAFB8B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE4FF505A13FEF7FAD7.text	1458879AFF9FFFE4FF505A13FEF7FAD7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada gracilis Cresson 1863	<div><p>Nomada gracilis Cresson, 1863 (ruficornis group)</p><p>Gracile Nomad</p><p>Notes: This northern species is numerous in Eastern Canada (see iNaturalist) but is found more sparsely in the Northeastern United States. It was surely overlooked by regional workers historically due in part to an early flight season. Only recently has N. inepta, described from the female, been recognized as a junior synonym of N. gracilis (Sheffield et al. 2009). Connecticut records come from habitats such as sandplain remnants, northern bogs, and arboretums.</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE4FF505A13FEF7FAD7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE4FF505BCFFD88F9DB.text	1458879AFF9FFFE4FF505BCFFD88F9DB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada illinoensis Robertson 1900	<div><p>Nomada illinoensis Robertson, 1900 (ruficornis group)</p><p>Illinois Nomad</p><p>Notes: A small-bodied species, likely associated with Andrena miserabilis, in a hard-to-identify complex of species with white setae at the apex of the hind tibia. Collection sites in Connecticut include agricultural land, coastal scrub, and a coastal meadow.</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE4FF505BCFFD88F9DB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9FFFE7FF5058C3FABFFF6F.text	1458879AFF9FFFE7FF5058C3FABFFF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada imbricata Smith 1854	<div><p>Nomada imbricata Smith, 1854 (ruficornis group)</p><p>Imbricate Nomad</p><p>Notes: The identity of this and other relatives of Nomada luteola (included in subgenus Heminomada sensu Mitchell, 1962; Hurd, 1979) was highly confused prior to taxonomic studies by Schwarz &amp; Gusenleitner (2004). It is now recognized to be a relatively numerous species across the region. Likely hosts in Connecticut include Andrena dunningi Cockerell and Andrena regularis Malloch (Gibbs et al. 2017a). This species has been found in habitats such as powerline ROW, coastal beaches and scrub, and agricultural land, with 39% of records coming from the Stewart B. McKinney National Wildlife Refuge in Westbrook (Middlesex County). Users of Discover Life identification keys should be aware that N. imbricata females from the Northeastern and North Central United States and Canada can have more extensively red head, scutum, and propodeum than do extensively yellow-marked mid-Atlantic specimens, so approaches to identification overly reliant on color may prove unreliable.</p></div>	https://treatment.plazi.org/id/1458879AFF9FFFE7FF5058C3FABFFF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF505EB0FA2AFE1F.text	1458879AFF9CFFE7FF505EB0FA2AFE1F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada integerrima Dalla and Torre 1896	<div><p>Nomada integerrima Dalla Torre, 1896 (ruficornis group)</p><p>Complete Nomad</p><p>Notes: Although reportedly widespread across the region and recorded from Connecticut by Mitchell</p><p>(1962), its true status in New England remains unclear due to identification difficulties (Veit et al. 2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF505EB0FA2AFE1F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF505F80FBF3FD07.text	1458879AFF9CFFE7FF505F80FBF3FD07.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada lehighensis Cockerell 1903	<div><p>Nomada lehighensis Cockerell, 1903 (ruficornis group)</p><p>Lehigh Nomad</p><p>Notes: The identification and status of this species was clarified by Droege et al. (2010a) who reported the species from Connecticut and recognized N. kingstonensis Mitchell, 1962, from nearby Rhode Island as a junior synonym. Now that its identification has been clarified it has been found widely across the Northeastern United States but remains under-recorded especially based on the harder-to-recognize male .</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF505F80FBF3FD07	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF505C98FE37FBA7.text	1458879AFF9CFFE7FF505C98FE37FBA7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada lepida Cresson 1863	<div><p>Nomada lepida Cresson, 1863, sensu Mitchell, 1962 (ruficornis group, bella subgroup)</p><p>Charming Nomad</p><p>Notes: As noted by Gibbs et al. (2017a), the type series may be composite, and specimens from the Eastern United States may not match the lectotype. It may be necessary to describe eastern populations as a new species or to assign them another name once type material in the challenging bella subgroup (= Gnathias) is better understood. Uncertainty about the identity of regional N. lepida sensu auct. extends to all New England records including those from Massachusetts, even though the taxonomic problem noted by Gibbs et al. (2017a) was not referenced by Veit et al. (2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF505C98FE37FBA7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF505A78FD46FAF2.text	1458879AFF9CFFE7FF505A78FD46FAF2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada luteola Olivier 1812	<div><p>Nomada luteola Olivier, 1812 [“1811”] (ruficornis group)</p><p>Yellowish Nomad</p><p>Notes: A southern species reaching its northern range limits in southern coastal Connecticut (Zarrillo et al. 2016) and New York City. Identification is challenging and should be attempted with reference to antennal proportions, genal morphology, and other characters as reported by Schwarz &amp; Gusenleitner (2004) .</p><p>Material examined. See Zarrillo e t al. (2016)</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF505A78FD46FAF2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF505B24FAB2F9E5.text	1458879AFF9CFFE7FF505B24FAB2F9E5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada luteoloides Robertson 1895	<div><p>Nomada luteoloides Robertson, 1895 (ruficornis group)</p><p>Black-and-yellow Nomad</p><p>Notes: One of the most numerous and widely recognized Nomada species in the Northeastern United States including Connecticut, likely reflecting an association with a common host species (likely Andrena carlini; see Gibbs et al. 2017a; Goldstein &amp; Ascher 2016). Many females are more readily identifiable from images than are most other regional Nomada, so specimen records are supplemented with community science reports.</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF505B24FAB2F9E5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF50583EFEFDF96B.text	1458879AFF9CFFE7FF50583EFEFDF96B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada maculata Cresson 1863	<div><p>Nomada maculata Cresson, 1863 (ruficornis group, bella subgroup)</p><p>Spotted Nomad</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF50583EFEFDF96B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9CFFE7FF5058B3FEF3F85D.text	1458879AFF9CFFE7FF5058B3FEF3F85D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada maculata Cresson 1863	<div><p>Nomada maculata Cresson, 1863: 303 (Connecticut lectotype designated by Cresson, 1916).</p><p>Lectotype. USA: Connecticut: Female, [ex coll. E. Norton?] (ANSP).</p><p>Notes: One of the most abundant Nomada species in the region, likely reflecting an association with common Andrena (Melandrena) hosts, likely including Andrena vicina . Habitat associations in Connecticut include powerline ROW, coastal beaches, agricultural land, inland dunes and sandplain remnants, suburban neighborhoods, and field edges.</p></div>	https://treatment.plazi.org/id/1458879AFF9CFFE7FF5058B3FEF3F85D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505ED5FD1FFD9E.text	1458879AFF9DFFE6FF505ED5FD1FFD9E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada obliterata Cresson 1863	<div><p>Nomada obliterata Cresson, 1863 (ruficornis group)</p><p>Obliterated Nomad</p><p>= Nomada viburni Robertson, 1897; = Nomada decepta Mitchell, 1962, unpublished synonymy of Snelling.</p><p>Notes: Typical individuals with two submarginal cells are readily identified, but some individuals may have three cells in one or both wings complicating identification. This species is expected to be localized to the vicinity of willows in Connecticut due to its reported association with Andrena erythrogaster . It is known in Connecticut only from a singleton collected in 1926.</p><p>Material examined. Litchfield Co.: Cornwall: 4 June 1926, coll. K.F. Chamberlain, sex unverified, UCMS, det. J.S. Ascher 2008, UCMS _ ENT 00032857 .</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505ED5FD1FFD9E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505C01FBB1FCAC.text	1458879AFF9DFFE6FF505C01FBB1FCAC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada ovata (Robertson 1903) F	<div><p>Nomada ovata (Robertson, 1903) (ruficornis group, bella subgroup)</p><p>Orange-tailed Nomad</p><p>Notes: One of the more numerous later spring-flying species in the region, e.g., at Ithaca, New York and vicinity (J. S. Ascher unpublished), but under-recorded, especially in the male, due to ongoing identification difficulties among Nomada with bidentate mandibles (see Mitchell 1962, key) .</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505C01FBB1FCAC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505D76FCF7FB97.text	1458879AFF9DFFE6FF505D76FCF7FB97.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada parva Robertson 1900	<div><p>Nomada parva Robertson, 1900 (ruficornis group)</p><p>Little Nomad</p><p>Notes: This species is generally scarce in the Northeastern United States and better known from further south. There are eight records of this species in Connecticut, most from warmer, coastal locations, and all records are relatively recent, spanning 2005–2017. Nomada parva is easily overlooked due to its unusually small size and similarity to other small-bodied species such as N. illinoensis .</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505D76FCF7FB97	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505A08FD7CFAD8.text	1458879AFF9DFFE6FF505A08FD7CFAD8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada perplexa Cresson 1863	<div><p>Nomada perplexa Cresson, 1863 (ruficornis group, bella subgroup)</p><p>Perplexing Nomad</p><p>Notes: This species can sometimes be recognized due to the more black (less red) integument in comparison to other species with bidentate mandibles. Identification is difficult and similar undescribed or at least generally unrecognized species may exist. Care should be taken to examine tibial spines when attempting to separate these. Early records from Connecticut have been augmented with recent material collected by M.F. Veit in powerline ROW and deciduous forests (Wagner et al. 2019) .</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505A08FD7CFAD8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505B3CFBF4F9F4.text	1458879AFF9DFFE6FF505B3CFBF4F9F4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada placida Cresson 1863	<div><p>Nomada placida Cresson, 1863 (roberjotiana group)</p><p>Placid Nomad</p><p>Notes: Recent observations of this species on iNaturalist are notable as this species is rarely seen, especially in New England. It was first found visiting flat-topped goldenrod ( Euthamia graminifolia) in New Haven County, Connecticut by D. P. Mantack (https://www.inaturalist.org/observations/179870206).</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505B3CFBF4F9F4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF50589BFDB7F855.text	1458879AFF9DFFE6FF50589BFDB7F855.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada pygmaea Cresson 1863	<div><p>Nomada pygmaea Cresson, 1863: 299 (Connecticut holotype).</p><p>Holotype. Male USA: Connecticut, [ex coll. E. Norton] (ANSP).</p><p>Notes: This species is apparently one of the most numerous Nomada in the woodlands of the Northeastern United States, with records published for all counties in Massachusetts (Veit et al. 2022[“2021”]) and all but one county (Windham County) in Connecticut. Although there are many records it is still likely under-recorded in digitized record sets due to serious identification difficulties and inability to recognize this and other similar Nomada from community science images.</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF50589BFDB7F855	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF9DFFE6FF505829FEFBF906.text	1458879AFF9DFFE6FF505829FEFBF906.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada pygmaea Cresson 1863	<div><p>Nomada pygmaea Cresson, 1863 (ruficornis group)</p><p>Pygmy Nomad</p></div>	https://treatment.plazi.org/id/1458879AFF9DFFE6FF505829FEFBF906	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA2FFD9FF505ED5FCB1FD91.text	1458879AFFA2FFD9FF505ED5FCB1FD91.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada sayi Robertson 1893	<div><p>Nomada sayi Robertson, 1893 (ruficornis group)</p><p>Say’s Nomad</p><p>Notes: As reported in the regional literature (e.g., Veit et al. 2022[“2021”]), N. sayi is less widely recognized than is the rather similar N. pygmaea, although its true status is unclear due to identification difficulties. There are only five records of this species in Connecticut (three of which are from one collection event in New Canaan).</p><p>Material examined. Fairfield Co.: New Canaan: 17 May 1968, coll. M. Favreau, 3 ♀, AMNH, det. J.S. Ascher 2011, AMNH _ BEE 00146949, AMNH _ BEE 00146950, AMNH _ BEE 00146951; Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.54247&amp;materialsCitation.latitude=42.0332" title="Search Plazi for locations around (long -72.54247/lat 42.0332)">Enfield</a>: “ 1 km N of jct. State Route 192 and Brainard Rd.”, 42.0332 -72.54247, 26 April 2005, 1 ♂ coll. C. T . Maier, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00030540; New Haven Co.: Meriden: 3 May 1972, coll. H.L. Johnson, 1 ♂, AMNH, det. J.S. Ascher 2011, AMNH _ BEE 00146970 .</p></div>	https://treatment.plazi.org/id/1458879AFFA2FFD9FF505ED5FCB1FD91	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA2FFD9FF505C04FD46FCF7.text	1458879AFFA2FFD9FF505C04FD46FCF7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada tiftonensis Cockerell 1903	<div><p>Nomada tiftonensis Cockerell, 1903 (vegana group)</p><p>Tifton Nomad</p><p>Notes: Nomada tiftonensis is a distinctive species flying in summer and early fall that can be found visiting sunflowers at sandy sites along with its presumed Agapostemon hosts. It was reported by Mitchell (1962) from Connecticut and Massachusetts as N. heiligbrodtii, now recognized as a junior synonym (Droege et al. 2010a).</p><p>Material examined. See Zarrillo et al. (2016)</p></div>	https://treatment.plazi.org/id/1458879AFFA2FFD9FF505C04FD46FCF7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA2FFD9FF505D29FBAEF96F.text	1458879AFFA2FFD9FF505D29FBAEF96F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada townesi Mitchell 1962	<div><p>Nomada townesi Mitchell, 1962 (ruficornis group)</p><p>Townes’ Nomad</p><p>Notes: Nomada townesi is a very poorly known species that has been known only from a male holotype collected on 26 Mar 1944 by H.K. and M. Townes at Takoma Park, Montgomery County, Maryland. The type specimen is one of four species keying to couplet 44 in Mitchell that have the basal vein of the forewing interstitial or nearly so with the transverse median vein.A specimen from Laurel, PWRC site 5, Prince Georges County Maryland, 20 Mar 2001, coll. Sam Droege, has such venation and otherwise matches Mitchell’s description. However, another larger but evidently conspecific individual taken nearby (at PWRC site 6) three days later (23 Mar) has the basal vein distinctly basad of the transverse median vein. The Connecticut male reported here closely matches the second specimen with venation atypical for the species (but normal for Nomada of this group). From these observations we conclude that N. townesi occurs in the Northeastern United States but may have been overlooked if many (perhaps most) individuals cannot be keyed reliable in Mitchell (1962) due to variation in placement of the basal vein relative to the transverse median vein. This observation suggests that the obscure N. ulsterensis Mitchell, 1962, also keying to couplet 44, may prove to be a previously described Nomada species with anomalous venation as opposed to a valid species. However, ignoring venation, N. townesi does not seem to match any other regional species so we regard it as distinct for now. On the other hand, some obscure, yellow-banded species formerly included in Heminomada (e.g., N. autumnalis Mitchell, in Gibbs et al., 2017) with interstitial basal veins that key out at couplet 32 may also represent individual variation as opposed to valid taxa. Schwarz and Gusenleiter (2004) placed one such taxon, N. bishoppi Cockerell, in synonymy, and we suspect that another obscure species in this group, N. subrutila Lovell and Cockerell, 1905, described from Maine (see Dibble et al. 2017) may prove to be a synonym of N. luteoloides (the description matches this better than another possible association, N. imbricata .)</p><p>Material examined. New London Co.: Preston: 1 km S jct. State Routes 2A and 12, 41.47346 N -72.06718</p><p>W, 9 Apr 2009, coll. C. T. Maier, 1 ♂, det. by (and on loan to) J.S. Ascher, 2023 .</p></div>	https://treatment.plazi.org/id/1458879AFFA2FFD9FF505D29FBAEF96F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA2FFD8FF5058B7FCADFF42.text	1458879AFFA2FFD8FF5058B7FCADFF42.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada vicina Cresson 1863	<div><p>Nomada vicina Cresson, 1863 (ruficornis group)</p><p>Neighborly Nomad</p><p>= Nomada beulahensis Cockerell, 1903, unpublished synonymy of Snelling; = Nomada vicina stevensi Swenk, 1913, unpublished synonymy of Snelling.</p><p>Notes: This species flies in the fall along with its presumed host Andrena hirticincta (Ascher et al. 2014) and is usually found on goldenrod or other composites. Care should be taken in identification, as the similar Nomada banksi Cockerell, 1907, might also occur in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFA2FFD8FF5058B7FCADFF42	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA3FFD8FF505964FB79F841.text	1458879AFFA3FFD8FF505964FB79F841.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratina (Zadontomerus) calcarata Robertson 1900	<div><p>Ceratina (Zadontomerus) calcarata Robertson, 1900</p><p>Spurred Small Carpenter</p><p>Notes: This very common species can be found throughout Connecticut and has been collected in various habitats such as powerline ROW, agricultural land, town parks, grassy fields, inland wetlands, beach dunes, a coastal wildlife preserve, sandplain remnants, suburban neighborhoods, and pollinator gardens.</p></div>	https://treatment.plazi.org/id/1458879AFFA3FFD8FF505964FB79F841	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA3FFD8FF505800FD94F8B2.text	1458879AFFA3FFD8FF505800FD94F8B2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratinini	<div><p>Ceratinini</p><p>Genus Ceratina Latreille</p><p>Reference: Daly (1973); Rehan &amp; Sheffield (2011)</p><p>Subgenus Zadontomerus Ashmead</p></div>	https://treatment.plazi.org/id/1458879AFFA3FFD8FF505800FD94F8B2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA3FFD8FF505F54FE12FD0F.text	1458879AFFA3FFD8FF505F54FE12FD0F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada vincta Say 1837	<div><p>Nomada vincta Say, 1837 ( vincta group)</p><p>Bound Nomad</p><p>Notes: A singleton in Connecticut was collected by H. L. Johnson on 29 August 1971, without specific locality information. Since H. L. Johnson typically collected near his home in Meriden (New Haven County), we surmise that this specimen was collected in that vicinity. This parasite of Andrena ( Callandrena s. l.) is often recorded from sunflowers in the Central United States but is rarely reported from the Northeast (Broemeling &amp; Moalif 1988). However, there are recent reports from New England states (Veit et al. 2022[“2021”]), including Vermont (S. Hardy pers. comm.).</p><p>Material examined. New Haven Co.: 29 August 1971, coll. H.L. Johnson, 1 ♂, UCMS, det. J.S. Ascher,</p><p>UCMS _ENT 00050234.</p></div>	https://treatment.plazi.org/id/1458879AFFA3FFD8FF505F54FE12FD0F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA3FFD8FF505C91FD26FA51.text	1458879AFFA3FFD8FF505C91FD26FA51.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada xanthura Cockerell 1908	<div><p>Nomada xanthura Cockerell, 1908 (ruficornis group)</p><p>Yellow-banded Nomad</p><p>= Nomada ochlerata Mitchell, 1962, new synonym; = Nomada detrita Mitchell, 1962, new synonym; = Nomada mendica Mitchell, 1962, new synonym .</p><p>Notes: This distinctively yellow-banded species was under-recorded in historical literature but has been found at various regional sites such as Ithaca, New York (J. S. Ascher pers. obs.; Veit et al. (2022[“2021”]), Vermont (S. Hardy pers. comm.), Massachusetts (Veit et al. 2022[“2021”]), and the following five towns in Connecticut: New Canaan and Danbury (Fairfield County), Barkhamsted and Goshen (Litchfield County), and Waterford (New London County). We consider both Nomada mendica Mitchell, 1962, and Nomada ochlerata Michell, 1962, to be junior synonyms of N. xanthura (see Gibbs et al. 2017a), and we concur with S. Droege’s observation shared on the Discover Life species page for N. xanthura that Nomada detrita Mitchell, 1962, is an atypical N. xanthura with two submarginal cells and thus a junior synonym. In the original description of N. ochlerata there is an inconsistency in the description of the coloration of the first metasomal tergum with, “abdominal terga 1-6 more or less completely yellow banded, that on 1 rather narrow…” contradicting, “tergum 1 piceous basally, more reddish apically.” The latter description is correct whereas in the former description “1” should be updated to 2.</p><p>Although N. xanthura has been considered a possible junior synonym of N. gracilis by S. Droege (e.g., as reported on the Discover Life species page for N. gracilis), we cannot accept this synonym because the two species differ strikingly in color pattern and occur together at places such as Ithaca, New York with no sign of intergradation. At least one male specimen identified as N. depressa by S. Droege from Essex County, New York proved upon reexamination to be N. xanthura .</p></div>	https://treatment.plazi.org/id/1458879AFFA3FFD8FF505C91FD26FA51	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505BB2FD38F9C5.text	1458879AFFA0FFDBFF505BB2FD38F9C5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletinae	<div><p>Colletinae</p><p>Genus Colletes Latreille</p><p>Reference: Mitchell (1960); Stephen (1954)</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505BB2FD38F9C5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505ED4FCC5FE09.text	1458879AFFA0FFDBFF505ED4FCC5FE09.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratina (Zadontomerus) dupla Say 1837	<div><p>Ceratina (Zadontomerus) dupla Say, 1837</p><p>Doubled Small Carpenter</p><p>Notes: This common species is best known in Connecticut from habitats such as coastal scrub, beach dunes, and powerline ROW, and was the third most abundant species captured in the Grass Island survey (Zarrillo &amp; Stoner 2019). Scarpulla (2013) reported that this species was also found in notably high numbers in his survey of Hart-Miller Island in Maryland compared to other species in the Ceratina species complex and suggests that C. dupla may be more tolerant of these types of dry, open conditions.</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505ED4FCC5FE09	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505F90FDDCFD39.text	1458879AFFA0FFDBFF505F90FDDCFD39.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratina (Zadontomerus) mikmaqi Rehan and Sheffield 2011	<div><p>Ceratina (Zadontomerus) mikmaqi Rehan and Sheffield, 2011</p><p>Mikmaq Small Carpenter</p><p>Notes: This recently described species has been found on agricultural land, marsh, beach dunes, coastal scrub, and a meadow adjacent to a forest.</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505F90FDDCFD39	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505CE0FC29FC21.text	1458879AFFA0FFDBFF505CE0FC29FC21.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Ceratina (Zadontomerus) strenua Smith 1879	<div><p>Ceratina (Zadontomerus) strenua Smith, 1879</p><p>Nimble Small Carpenter</p><p>Notes: This species has been collected in the southern, coastal counties in Connecticut and in the Connecticut River Valley in Hartford County, in habitats such as powerline ROW, grassy meadows, agricultural land, suburban neighborhoods, and a coastal wildlife preserve. Ceratina strenua was observed to nest in the stems of sumac ( Rhus sp.) by M. Favreau in the 1970’s in New Canaan (Fairfield County).</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505CE0FC29FC21	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF5058DEFE05F94B.text	1458879AFFA0FFDBFF5058DEFE05F94B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes aestivalis Patton 1879	<div><p>Colletes aestivalis Patton, 1879 ( aestivalis group)</p><p>Alumroot Cellophane Bee</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF5058DEFE05F94B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDAFF505953FC70FE33.text	1458879AFFA0FFDAFF505953FC70FE33.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes aestivalis Patton 1879	<div><p>Colletes aestivalis Patton, 1879: 142 . (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: New Haven Co., 12 July [1878 or before], W. H. Patton, ex Heuchera americana (lost; replaced by a neotype from Maryland in USNM)</p><p>Notes: Connecticut is the type locality of this oligolege of alumroot ( Heuchera sp.) (Robertson 1895); however, the type was lost and, in the absence of available Connecticut material, a female from Maryland was designated as the neotype by Stephen (1954). Colletes aestivalis has not been detected in Connecticut since its description in 1879 and there is only one undated historical record for Masaschusetts ( Veit et al. 2022[“2021”]). The historical range of C. aestivalis extends up the eastern coast of the United States from Georgia to Massachusetts, and west to Illinois ( Mitchell 1960) and Missouri. There have been few recent records of this species in the Northeastern United States, however the paucity of records may be due to lack of targeted collecting on its native host plant. It has been recorded recently in specialized habitat in the Mid-Atlantic region and in the western portion of its range (e.g., Missouri, see https://www.inaturalist.org/observations/139493810) .</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDAFF505953FC70FE33	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505DF9FD9FFB3A.text	1458879AFFA0FFDBFF505DF9FD9FFB3A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Xylocopini	<div><p>Xylocopini</p><p>Genus Xylocopa Latreille</p><p>Reference: Hurd (1956)</p><p>Subgenus Xylocopoides Michener</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505DF9FD9FFB3A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA0FFDBFF505ADCFEE9FA68.text	1458879AFFA0FFDBFF505ADCFEE9FA68.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Xylocopa (Xylocopoides) virginica subsp. virginica (Linnaeus 1771) F	<div><p>Xylocopa (Xylocopoides) virginica virginica (Linnaeus, 1771)</p><p>Eastern Carpenter</p><p>Notes: Records for this species in Connecticut span from 1900–2023, yet most of the records (about 79%) were collected after the year 2000. Although X. virginica virginica is considered to be a “pest” because of its tunneling nesting behavior in wood, it is known to be a valuable pollinator of agricultural crops such as watermelon, musk melon, and cucumber (Winfree et al. 2008).</p><p>COLLETIDAE</p></div>	https://treatment.plazi.org/id/1458879AFFA0FFDBFF505ADCFEE9FA68	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA1FFDAFF505FE4FB23FD53.text	1458879AFFA1FFDAFF505FE4FB23FD53.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes americanus Cresson 1868	<div><p>Colletes americanus Cresson, 1868 ( americanus group)</p><p>American Cellophane Bee</p><p>Notes: Colletes americanus was noted in Viereck (1916) as probably present Connecticut due to its known distribution and habitats, however, identification of this species is challenging and has been subject to numerous errors (Kuhlmann &amp; Ascher 2010). Species such as the morphologically similar Colletes speculiferus [= mitchelli] were not yet described and thus unknown to Viereck and other collectors at that time. The first verified record we could find for C. americanus in Connecticut was a specimen collected in 1919. This species is now documented from six Connecticut counties, in habitats such as powerline ROW and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFFA1FFDAFF505FE4FB23FD53	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA1FFDAFF505D44FAA6FBE5.text	1458879AFFA1FFDAFF505D44FAA6FBE5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes banksi Swenk 1908	<div><p>Colletes banksi Swenk, 1908 (hyalinus group)</p><p>Banks’ Cellophane Bee</p><p>Notes: This rarely captured species is a specialist on holly ( Ilex) (Deyrup et al. 2002). The only two known Connecticut specimens were collected in 2012 in the town of Salem (New London County) near a gravelly, sandy, unfinished road.</p><p>Material examined. New London Co.: Salem: “jct. Rt. 11/82”, 41.46 -72.26805, 14–16 June 2012, coll. D.L. Wagner, 1 ♀, UCMS, det. J.S. Ascher, bee bowl, UCMS _ ENT 00050043; “Rt. 11 Extension”, 41.46166 - 72.27138, 14 June 2012, coll. F. Morrison, 1 ♂, UCMS, det. J.S. Ascher 2012, UCMS _ ENT 00050148 .</p></div>	https://treatment.plazi.org/id/1458879AFFA1FFDAFF505D44FAA6FBE5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA1FFDAFF505AB3FC0CF9C3.text	1458879AFFA1FFDAFF505AB3FC0CF9C3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes compacta Cresson 1868	<div><p>Colletes compacta Cresson, 1868:166 . (Connecticut syntype).</p><p>Syntype. Female USA: Connecticut. A specimen from Illinois was selected as the lectotype by the describer (Cresson, 1916) .</p><p>Notes: This autumn bee is a specialist on Asteraceae (Gibbs et al. 2017a) and has been collected from goldenrod ( Solidago s. l.) and unspecified Asters in Connecticut, in habitats such as coastal state parks, town beaches and inland ponds, and powerline ROW. Of note, one male was collected at Long Beach Park in Stratford (Fairfield County) on seaside goldenrod ( Solidago sempirvirens) by C. T. Maier on 22 September 2009 along with a reported cleptoparasite (Rozen &amp; Favreau 1968) Epeolus pusillus . Additionally, Epeolus autumnalis, a reported cleptoparasite of C. compactus compactus (Ascher et al. 2014), was netted with its host in a powerline ROW in Montville (New London County) on 3 September 2012 by F. Morrison.</p></div>	https://treatment.plazi.org/id/1458879AFFA1FFDAFF505AB3FC0CF9C3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA1FFDAFF505A3EFE5CFB6B.text	1458879AFFA1FFDAFF505A3EFE5CFB6B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes compactus subsp. compactus Cresson 1868	<div><p>Colletes compactus compactus Cresson, 1868 ( compactus group)</p><p>Eastern Aster Cellophane Bee</p></div>	https://treatment.plazi.org/id/1458879AFFA1FFDAFF505A3EFE5CFB6B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA1FFDAFF5058D4FF40F82B.text	1458879AFFA1FFDAFF5058D4FF40F82B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes inaequalis Say 1837	<div><p>Colletes inaequalis Say, 1837 ( inaequalis group)</p><p>Unequal Cellophane Bee</p><p>Notes: This common species is one of the earliest native bees to emerge in Connecticut, coinciding in phenology with the bloom of maple ( Acer spp.) and willow ( Salix spp.), which provide early season sources of nectar and pollen (Batra 1985; Tumminello et al. 2018). This bee commonly forms nesting aggregations throughout the state.</p></div>	https://treatment.plazi.org/id/1458879AFFA1FFDAFF5058D4FF40F82B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDDFF505ED5FCA7FE41.text	1458879AFFA6FFDDFF505ED5FCA7FE41.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes latitarsis Robertson 1891	<div><p>Colletes latitarsis Robertson, 1891 (latitarsus group)</p><p>Broad-footed Cellophane Bee</p><p>Notes: This summer-flying species is a specialist on ground cherry ( Physalis sp.) (Gibbs et al. 2017a) and a host of the cleptoparasitic bee Epeolus bifasciatus (Brumley 1965; Mitchell 1962). Only thirteen specimens of this species have been collected in two counties in Connecticut over the past 100 years: two from 1972 (New Haven County), one from 2007 (Litchfield County), five from 2020 (Litchfield County), and five from 2021 (Litchfield County). In 2021, a female Epeolus bifasciatus was opportunistically captured on an organic farm in the town of Ridgefield (Fairfield County) where ground cherry ( Physalis sp.) has been grown as a crop for the past 12 years, suggesting that its host, C. latitarsis, must also be nearby.</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDDFF505ED5FCA7FE41	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDDFF505C59FB4DFCE1.text	1458879AFFA6FFDDFF505C59FB4DFCE1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes productus Robertson 1891	<div><p>Colletes productus Robertson, 1891 ( productus group)</p><p>Maleberry Cellophane Bee</p><p>Notes: The first known records in Connecticut for this rarely collected species were from W. E. Britton in Torrington (Litchfield County) on 7 July 1905 (male), and from an unknown collector (label data: B. T. R. Lab. Col.) in Stamford ( Fairfield County) on 22 June 1929 (female). Likely under-collected historically, this specialist on maleberry ( Lyonia ligustrina) ( Hall et al. 2016; Wagner et al. 2014a) was later netted from this host plant in 1976 by G. I. Stage in the town of Stafford ( Tolland County) (unpublished), with subsequent captures by Wagner et al. (2014) in their survey of wild bee communities living under transmission line ROW in Connecticut .</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDDFF505C59FB4DFCE1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDDFF505D39FEC4FB01.text	1458879AFFA6FFDDFF505D39FEC4FB01.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes simulans subsp. armatus Patton 1879	<div><p>Colletes simulans armatus Patton, 1879 ( simulans group)</p><p>Eastern Spine-shouldered Cellophane Bee</p><p>Notes: Colletes simulans Cresson was originally described from Colorado. Stephen (1954) recognized four subspecies, with armatus Patton being the subspecies in New England, the northern Great Plains, and the eastern seaboard south to North Carolina. Colletes simulans armatus, is a specialist on late-season Asteraceae (Hurd 1979) and has been collected often on goldenrod ( Solidago s. l.) in Connecticut and across the region. Its peak flight activity in Connecticut is earlier than C. compactus compactus, which generally matches its phenology in New York (Ascher et al. 2014).</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDDFF505D39FEC4FB01	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDDFF505A99FE2EFA4D.text	1458879AFFA6FFDDFF505A99FE2EFA4D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes solidaginis Swenk 1906	<div><p>Colletes solidaginis Swenk, 1906 ( americanus group)</p><p>Goldenrod Cellophane Bee</p><p>Notes: Gerald Stage collected specimens in Connecticut in 1973 (n = 6) in Mansfield (Tolland County) near Chapin’s Pond, however this species was first reported from Connecticut by Wagner et al. (2014a). It has also been captured in a bee bowl in sand dune remnants in Simsbury ( Hartford County) between 15–18 August 2007 by A. Bouchard and D. L. Wagner, and a powerline ROW in Bozrah ( New London County) on 19 July 2006 by N. Bricker and J. Watson .</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDDFF505A99FE2EFA4D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDDFF505855FCE1F8F3.text	1458879AFFA6FFDDFF505855FCE1F8F3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes speculiferus Cockerell 1927	<div><p>Colletes speculiferus Cockerell, 1927 ( americanus group)</p><p>Beach Dune Cellophane Bee</p><p>Notes: This autumnal specialist of Asteraceae is mostly known in New England from the offshore islands of Massachusetts (Goldstein &amp; Ascher 2016; Stage 2009) [as mitchelli] and Rhode Island and is associated with sandy dunes with goldenrod. It is known in Connecticut from a single female collected in powerline ROW.</p><p>Material examined. New London Co.: Montville: “Chesterfield Rd.”, 4 July 2006, coll. N. Bricker &amp; J.</p><p>Watson, 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00050606 .</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDDFF505855FCE1F8F3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA6FFDCFF505924FBC1FEA7.text	1458879AFFA6FFDCFF505924FBC1FEA7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes thoracicus Smith 1853	<div><p>Colletes thoracicus Smith, 1853 ( inaequalis group)</p><p>Rufous-chested Cellophane Bee</p><p>Notes: This common species emerges later in the spring than C. inaequalis in Connecticut, and its large aggregations have been found in habitats ranging from beaches along the coast to inland sandplain remnants, organic farms, powerline ROW, urban planting beds, and school playgrounds. Males can be seen in large numbers flying low to the ground patrolling the area for females as they leave their nest to gather pollen.</p></div>	https://treatment.plazi.org/id/1458879AFFA6FFDCFF505924FBC1FEA7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDCFF505D4BFD9CFC74.text	1458879AFFA7FFDCFF505D4BFD9CFC74.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeinae	<div><p>Hylaeinae</p><p>Genus Hylaeus Fabricius</p><p>Reference: Mitchell (1960); Oram (2018); Snelling (1966, 1968, 1970, 1983)</p><p>Subgenus Cephalylaeus Michener</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDCFF505D4BFD9CFC74	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDCFF505F78FB51FD53.text	1458879AFFA7FFDCFF505F78FB51FD53.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Colletes validus Cresson 1868	<div><p>Colletes validus Cresson, 1868 ( inaequalis group)</p><p>Blueberry Cellophane Bee</p><p>Notes: The first known records for this species in Connecticut were collected by Viereck in 1904 on American gooseberry ( Ribes oxyacanthoides), and leatherleaf ( Chamaedaphne calyculata). Rajotte (1979) studied the nesting habits, pheromone response, and foraging behavior of this species at a sandplain in the town of Mansfield (Tolland County), Connecticut, northeast of Chapins Pond. He found that C. validus waited 11–20 days after emergence to collect pollen from early and late lowbush blueberries ( Vaccinium angustifolium and V. pallidum [as V. vascillans, a misspelling of vacillans] respectively) and found that excavated pollen provisions were almost exclusively from Vaccinium or other ericaceous species (Rajotte 1979). Due to its specialization on Vaccinium spp. pollen and its gregarious nesting habit (Rajotte 1979), this species has potential to be an important native pollinator of lowbush (Boulanger e t al. 1967; Rajotte 1979) and highbush blueberry (Scott et al. 2016; Tuell et al. 2009).</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDCFF505F78FB51FD53	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDCFF505DAEFE52FA1A.text	1458879AFFA7FFDCFF505DAEFE52FA1A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Cephalylaeus) basalis (Smith 1853) H	<div><p>Hylaeus (Cephalylaeus) basalis (Smith, 1853)</p><p>Cinquefoil Masked Bee</p><p>Notes: This northern species persists in good numbers in the Northern and Western portions of its range (e.g., in Canada and the Rocky Mountains) but is rare and local at best in the Northeastern United States and may have declined at the southern edge of its range. Causes of a potential decline are unknown, but it is possible that reforestation of historically-denuded mountaintops in New England (and New York) led to a decline due to ecological succession of its host plant Potentilla .</p><p>Material examined. Hartford Co.: Hartland: “ 1 mi S of West Hartland”, 6 June 1966, coll. S.M. Fullerton,</p><p>f1, UCMS, det. S.M. Fullerton 1968, UCMS _ENT 00029328.</p><p>Subgenus Hylaeus Fabricius</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDCFF505DAEFE52FA1A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDCFF505BFCFF5FF92F.text	1458879AFFA7FFDCFF505BFCFF5FF92F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Hylaeus) annulatus (Linnaeus 1758) H	<div><p>Hylaeus (Hylaeus) annulatus (Linnaeus, 1758)</p><p>Annulate Masked Bee</p><p>Notes: Hylaeus annulatus is a northern Holarctic species at the southern edge of its range in Southern New England where it is generally scarce. All but four of the eighteen Connecticut records are from northern towns (78%).</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDCFF505BFCFF5FF92F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDCFF5058F0FBD8F8DF.text	1458879AFFA7FFDCFF5058F0FBD8F8DF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Hylaeus) leptocephalus (Morawitz 1870)	<div><p>Hylaeus (Hylaeus) leptocephalus (Morawitz, 1871[“1870”])</p><p>Slender-faced Masked Bee</p><p>Notes: This exotic species is well known in New York City but was only recently reported from Massachusetts</p><p>(Veit et al. 2022[“2021”]). It has been detected in at least four counties in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDCFF5058F0FBD8F8DF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA7FFDFFF5059C0FAACFF0B.text	1458879AFFA7FFDFFF5059C0FAACFF0B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Hylaeus) mesillae subsp. cressonii (Cockerell 1907) F	<div><p>Hylaeus (Hylaeus) mesillae cressonii (Cockerell, 1907)</p><p>Cresson’s Masked Bee</p><p>Notes: It is generally a common bee in the Northeastern United States, including Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFA7FFDFFF5059C0FAACFF0B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA4FFDFFF505E8CFE4EFDE5.text	1458879AFFA4FFDFFF505E8CFE4EFDE5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Hylaeus) saniculae (Robertson 1896) H	<div><p>Hylaeus (Hylaeus) saniculae (Robertson, 1896)</p><p>Sanicle Masked Bee</p><p>Notes: Hylaeus saniculae is generally scarce across its wide range (Veit et al. 2022[“2021”]), but females may be under-recorded due to their similarity to H. mesillae cressonii (Snelling 1970) .</p><p>Material examined. Hartford Co.: South Windsor: 21 June 2017, coll. M.F. Veit, f1, personal collection, det. M.F. Veit 2017, netted in powerline ROW; Tolland Co.: Coventry: “near Eagleville Dam”, 7 July 1972, coll. G.I. Stage, m1, UCMS , det. J.S. Ascher 2008, UCMS _ ENT 00032846; Mansfield: “Chaffeeville”, 29 September 1973, coll. M.A. Wert, sex unverified, UCMS , det. J.S. Ascher 2008, UCMS _ ENT 00032847 .</p><p>Subgenus Metziella Michener</p></div>	https://treatment.plazi.org/id/1458879AFFA4FFDFFF505E8CFE4EFDE5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA4FFDFFF505C3DFE55FBC0.text	1458879AFFA4FFDFFF505C3DFE55FBC0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Metziella) sparsus (Cresson 1869) F	<div><p>Hylaeus (Metziella) sparsus (Cresson, 1869)</p><p>Broad-faced Masked Bee</p><p>Notes: Hylaeus sparsus is generally a rare bee in collections for unknown reasons, but it has been recorded in Prospect Park, Brooklyn, New York City, visiting Apiaceae (J. S. Ascher, unpublished). There are four records for this species in Connecticut, with the most recent (n = 2) collected in a powerline ROW and a woodland.</p><p>Material examined. Fairfield Co.: Newtown: 1 June 1933, coll. N. Turner, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00030534; New Haven Co.: Beacon Falls: 14 May 1934, coll. G.H. Plumb, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00030533; New London Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.23388&amp;materialsCitation.latitude=41.4325" title="Search Plazi for locations around (long -72.23388/lat 41.4325)">Montville</a>: 41.4325 -72.23388, 12–14 May 2012, coll. B. Gagliardi &amp; N. Schoppmann, 1 ♂, UCMS, det. J.S. Ascher 2012, bee bowl, UCMS _ ENT 00050748; 41.43138 -72.23416, 31 May 2012, coll. M. Gould, N. Schoppmann &amp; V . Bruzzese, 1 ♀, UCMS, det. J.S. Ascher 2008, UCMS _ ENT 00050749 .</p><p>Subgenus Prosopis Fabricius</p></div>	https://treatment.plazi.org/id/1458879AFFA4FFDFFF505C3DFE55FBC0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA4FFDFFF5058EEFBC1F838.text	1458879AFFA4FFDFFF5058EEFBC1F838.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Prosopis) affinis (Smith 1853) F	<div><p>Hylaeus (Prosopis) affinis (Smith, 1853)</p><p>Allied Masked Bee</p><p>Notes: Hylaeus affinis is thought to be a rather common species, although considerably less so than H. modestus . Its true status is somewhat unclear due to ongoing identification difficulties, especially of females, although recent work by Oram (2018) has helped to clarify morphological identification.</p></div>	https://treatment.plazi.org/id/1458879AFFA4FFDFFF5058EEFBC1F838	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA4FFDFFF505ADAFE7FF934.text	1458879AFFA4FFDFFF505ADAFE7FF934.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Prosopis) nelumbonis (Robertson 1890) NH	<div><p>Hylaeu s (Prosopis) aff. nelumbonis (Robertson, 1890)</p><p>Lotus Masked Bee</p><p>Notes: This dark form was first reported in Connecticut in Zarrillo &amp; Stoner (2019). Vouchers collected at Grass Island (New Haven County, Guilford, CT) closely resemble H. schwarzii in that the first tergum (T1) of the abdomen of both the male and female are black or nearly black, however, DNA analysis assigned to BIN AAX2614 ( H. nelumbonis) and certain morphological characters of our specimens, such as the lack of a median, basal elevation on S3 and S4 (males) and the presence of a short, flat, finely rugoso-punctate metanotum (females), suggest H. nelumbonis (Zarrillo et al. 2016, Zarrillo &amp; Stoner 2019). Thirteen of our females have a hint of chestnut hue on the base of T1, while one has the base of T1 with bright ochraceous mottling, and another base of T1 with bronze mottling. Our vouchers of uncertain taxonomic status match those described in Ascher et al. (2014), Arduser (2020), and Jacobson (2021), and were collected from field sowthistle ( Sonchus arvensis), Queen Anne’s lace ( Daucus carota), and common marshmallow ( Althaea officinalis) in Connecticut. Further taxonomic study of this unusual form is warranted.</p></div>	https://treatment.plazi.org/id/1458879AFFA4FFDFFF505ADAFE7FF934	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA4FFDEFF5059E2FD46FDB0.text	1458879AFFA4FFDEFF5059E2FD46FDB0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Prosopis) illinoisensis (Robertson 1896) NH	<div><p>Hylaeus (Prosopis) illinoisensis (Robertson, 1896)</p><p>Illinois Masked Bee</p><p>Notes: The putative male from Connecticut has been rechecked against Mitchell (1960), Oram (2018), and an unpublished key written by Arduser (2020). Our male specimen exhibits the following diagnostic characters: T1 shiny, very faintly punctate (visible only at 40x), with T2 densely punctured and less shiny (visible at 10×); hind tibia mostly yellow with a small dark maculation on the posterior surface only. We are accepting this specimen to be H. illinoisensis as understood by the preceding descriptive accounts. This species has been reported from many states and provinces, but it is poorly known, and it is possible that many records are unreliable. Regional Hylaeus illinoisensis males with yellow or mostly yellow hind tibiae are often identified as this based on Mitchell (1960), however they can now be rechecked against Oram (2018) and Arduser (2020) as well for further validation. The species may be associated with wetland areas at least in Manitoba (Gibbs et al. 2023).</p><p>Material examined. See Zarrillo et al. (2016)</p></div>	https://treatment.plazi.org/id/1458879AFFA4FFDEFF5059E2FD46FDB0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA5FFDEFF505C6AFE4FFCD0.text	1458879AFFA5FFDEFF505C6AFE4FFCD0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Prosopis) modestus subsp. modestus Say 1837	<div><p>Hylaeus (Prosopis) modestus modestus Say, 1837</p><p>Eastern Modest Masked Bee</p><p>Notes: As understood by us this is the most observed Hylaeus in the region, but its status and identification are still rather problematic due to the existence of similar taxa including an unpublished morphospecies (Arduser 2020; Gibbs et al. 2023). Presumptive females are relatively large, have yellow (not white) markings (unlike various exotic Hylaeus in the region), and black tegulae. The latter character has been invoked to support preliminary image-based identification (e.g., at Bugguide and iNaturalist), but the reliability of this and other putative identification criteria requires further testing.</p></div>	https://treatment.plazi.org/id/1458879AFFA5FFDEFF505C6AFE4FFCD0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA5FFDEFF505DCAFEF0F8E2.text	1458879AFFA5FFDEFF505DCAFEF0F8E2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Prosopis) schwarzii (Cockerell 1896) NH	<div><p>Hylaeus (Prosopis) schwarzii (Cockerell, 1896)</p><p>Schwarz’s Masked Bee</p><p>Notes: Connecticut specimens have been restudied by T. A. Zarrillo who has confirmed that the specimens are morphologically distinct from Connecticut H. aff. nelumbonis material. Our two male vouchers of H. schwarzii have the characteristic shining, impunctate, basal median elevation on the third sternite (S3) as described in Mitchell (1960). We are not able to confirm the elevation on S4 as it is hidden under S3. Our three females have the basal area of T1 piceous, and metanotum long, convex, dull with tessellation, and smooth. Connecticut material morphologically determined as H. schwarzii by experts was sent to York University for DNA barcoding and the queried specimen (and also a putative Maryland H. schwarzii, presumably also another black-colored bee) assigned to BIN: AAX2614, H. nelumbonis (very close to but not identical to the Mississippi H. nelumboni s and the Connecticut H. aff. nelumbonis). Further integrative taxonomic study is needed to see if red-marked and all-black bees in this complex from Connecticut and elsewhere (e.g., Maryland) are conspecific. If so, this may suggest that H. nelumbonis is variable, with some being all black.Alternative possibilities are that the black putative H. schwarzii from Connecticut and Maryland are a cryptic “new” form minimally diverged (for COI) from H. nelumbonis (and the Connecticut “ H. aff. nelumbonis ”). A more complicated interpretation would be that the Connecticut and Maryland “ H. schwarzii ” are H. schwarzii that have acquired H. nelumbonis mt DNA through past hybridization or some other mechanism.</p><p>Material examined: New Haven Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.67516&amp;materialsCitation.latitude=41.2647" title="Search Plazi for locations around (long -72.67516/lat 41.2647)">Guilford</a>: “Chaffinch Island Park”, 41.26470 —72.67516, 22 August 2009, coll. C. T . Maier, 1 ♂, CAES , det. T. A. Zarrillo 2024, UCMS _ ENT 00052699 ; “ <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.65639&amp;materialsCitation.latitude=41.267796" title="Search Plazi for locations around (long -72.65639/lat 41.267796)">Grass Island</a> ”, 41.267795 - 72.656389, 18-19 June 2011, coll. T . A. Zarrillo, 1 ♀, CAES , det. T. A. Zarrillo 2024, bee bowl near a marsh, UCMS _ ENT 00052698 ; 9 July 2011, coll. T . A. Zarrillo, 1 ♀, CAES , det. T. A. Zarrillo 2024, netted from Rosa rugosa near a marsh, UCMS _ ENT 00052657 ; 41.2684, -72.6609, 18-19 June 2011, coll. T . A. Zarrillo, 1 ♂, CAES , det. T. A. Zarrillo 2024, bee bowl on beach dunes, UCMS _ ENT_00052690; 7 July 2012, coll. T . A. Zarrillo, 1 ♀, CAES , det. T.A. Zarrillo 2024, netted from Rosa rugosa, UCMS _ENT 00052695.</p><p>HALICTIDAE</p></div>	https://treatment.plazi.org/id/1458879AFFA5FFDEFF505DCAFEF0F8E2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA5FFD1FF5059F2FE52FE99.text	1458879AFFA5FFD1FF5059F2FE52FE99.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochlorini	<div><p>Augochlorini</p><p>Genus Augochlora Smith</p><p>Reference: Mitchell (1960)</p><p>Subgenus Augochlora Smith</p></div>	https://treatment.plazi.org/id/1458879AFFA5FFD1FF5059F2FE52FE99	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505872FD46F95B.text	1458879AFFAAFFD1FF505872FD46F95B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Agapostemon (Agapostemon) sericeus (Forster 1771) F	<div><p>Agapostemon (Agapostemon) sericeus (Forster, 1771)</p><p>Silky Striped-Sweat Bee</p><p>Notes: This is by far the most numerous Agapostemon species with green-tailed females away from coastal dune, sandplain, or otherwise sandy sites in the region.</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505872FD46F95B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505942FEC6F840.text	1458879AFFAAFFD1FF505942FEC6F840.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Agapostemon (Agapostemon) splendens (Lepeletier 1841) H	<div><p>Agapostemon (Agapostemon) splendens (Lepeletier, 1841)</p><p>Dark-winged Striped-Sweat Bee</p><p>Notes: This sand specialist is best known from the coast in the Northeastern United States, thus inland records are notable. Agapostemon splendens has been found in both coastal and sandy inland locations in Connecticut, as far inland as Enfield (Hartford County) on the Massachusetts border in a sandplain remnant, and Mansfield [“Storrs “] ( Tolland County) .</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505942FEC6F840	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505BC6FD05F9A8.text	1458879AFFAAFFD1FF505BC6FD05F9A8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictini	<div><p>Halictini</p><p>Genus Agapostemon Guerin-Meneville</p><p>Reference: Portman et al. (2024); Roberts (1972)</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505BC6FD05F9A8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505F01FDCEFDDF.text	1458879AFFAAFFD1FF505F01FDCEFDDF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochlora (Augochlora) pura subsp. pura (Say 1837) F	<div><p>Augochlora (Augochlora) pura pura (Say, 1837)</p><p>Pure Green-Sweat Bee</p><p>Notes: This wood-nesting species is widely distributed and numerous across the region and is frequently identified from images.</p><p>Genus Augochlorella Sandhouse</p><p>Reference: Coelho (2004); Ordway (1966)</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505F01FDCEFDDF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505CC7FDD3FBF7.text	1458879AFFAAFFD1FF505CC7FDD3FBF7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochlorella aurata (Smith 1853) F	<div><p>Augochlorella aurata (Smith, 1853)</p><p>Golden Green-Sweat Bee</p><p>Notes: This is the only Augochlorella species confirmed by us from the Atlantic Coastal states north of central New Jersey, although other species have been reported in both literature (Rothwell &amp; Ginsberg 2019) and online occurrence datasets (Ascher 2016; Droege &amp; Maffei 2023; University of New Hampshire Collection of Insects and other Arthropods 2023; see Problematic species accounts below). Augochlorella aurata was the fifth most abundant bee species in the Grass Island surveys (Zarrillo &amp; Stoner 2019).</p><p>Genus Augochloropsis Cockerell</p><p>Reference: Mitchell (1960); Portman et al. (2022)</p><p>Subgenus Paraugochloropsis Schrottky</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505CC7FDD3FBF7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAAFFD1FF505A2FFB89FADC.text	1458879AFFAAFFD1FF505A2FFB89FADC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochloropsis (Paraugochloropsis) viridula (Smith 1853) F	<div><p>Augochloropsis (Paraugochloropsis) viridula (Smith, 1853)</p><p>Shiny Northern Epauletted-Sweat Bee</p><p>Notes: The taxonomic status of this species was recently clarified by Portman et al. (2022). Formerly Augochloropsis metallica fulgida sensu Mitchell (in part), this species is now confirmed from New York (type locality), New England, and Eastern Canada (Portman et al. 2022). In Connecticut, this species has been found predominantly in sandplain remnants and locations with a sand/gravel component .</p></div>	https://treatment.plazi.org/id/1458879AFFAAFFD1FF505A2FFB89FADC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFABFFD0FF505ED5FD34FE41.text	1458879AFFABFFD0FF505ED5FD34FE41.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Agapostemon (Agapostemon) subtilior Cockerell 1898	<div><p>Agapostemon (Agapostemon) subtilior Cockerell, 1898</p><p>Subtle Striped-Sweat Bee</p><p>Notes: Portman et al. (2024) reinstated this taxon from synonymy with Agapostemon texanus (sensu Roberts 1977) . All Agapostemon texanus records from the Northeastern United States can be attributed to Agapostemon subtilior, since confirmed records of Agapostemon texanus are limited to the Central United States with known eastern range limits extending from Minnesota to Louisiana and Mississippi. Agapostemon subtilior is expected to be more localized than is A. sericeus in the Northeastern United States and may be most numerous at sandy sites. In Connecticut this species is best known from powerline ROW, inland sandplain remnants and locations with a sand/gravel component, and in coastal scrub.</p></div>	https://treatment.plazi.org/id/1458879AFFABFFD0FF505ED5FD34FE41	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFABFFD0FF505C59FE5CFC59.text	1458879AFFABFFD0FF505C59FE5CFC59.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Agapostemon (Agapostemon) virescens (Fabricius 1775)	<div><p>Agapostemon (Agapostemon) virescens (Fabricius, 1775)</p><p>Bicolored Striped-Sweat Bee</p><p>Notes: This species is best known from agricultural locations around the state (53% of total records), with 39% of total records coming from the glycol cup traps used in the Connecticut Bee Monitoring Program (unpublished, see Introduction). This species is easily recognizable on community science portals (especially the female) and is the 7 th most observed species in Connecticut on iNaturalist (https://www.inaturalist.org/observations?place_id=49&amp; subview=table&amp;taxon_id=630955&amp;view=species) despite difficulties in identifying males .</p><p>Genus Halictus Latreille</p><p>Reference: Mitchell (1960)</p><p>Subgenus Nealictus Pesenko</p></div>	https://treatment.plazi.org/id/1458879AFFABFFD0FF505C59FE5CFC59	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFABFFD0FF505A41FD93FAAA.text	1458879AFFABFFD0FF505A41FD93FAAA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictus (Nealictus) parallelus Say 1837	<div><p>Halictus (Nealictus) parallelus Say, 1837</p><p>Parallel Furrow Bee</p><p>Notes: The genus Halictus is represented by four species in Connecticut, with H. parallelus being the largest in size, and perhaps the most restricted due to its association with sandy habitats. It is expected to be localized, and in Connecticut has been found in powerline ROW, inland sandplain remnants, grasslands, and on agricultural land.</p><p>Subgenus Odontalictus Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFABFFD0FF505A41FD93FAAA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFABFFD0FF505B6CFDADF984.text	1458879AFFABFFD0FF505B6CFDADF984.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictus (Odontalictus) ligatus Say 1837	<div><p>Halictus (Odontalictus) ligatus Say, 1837</p><p>Ligated Furrow Bee</p><p>Notes: By far the most encountered Halictus in the state of Connecticut, and the third most observed bee species in Connecticut on iNaturalist (https://www.inaturalist.org/observations?d1= 1924-09-01 &amp;place_id=49&amp;sub view=table&amp;taxon_id=630955&amp;view=species) .</p><p>Subgenus Protohalictus Pesenko</p></div>	https://treatment.plazi.org/id/1458879AFFABFFD0FF505B6CFDADF984	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFABFFD3FF50581FFDB3FF0A.text	1458879AFFABFFD3FF50581FFDB3FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictus (Protohalictus) rubicundus (Christ 1791) F	<div><p>Halictus (Protohalictus) rubicundus (Christ, 1791)</p><p>Orange-legged Furrow Bee</p><p>Notes: Availability of more than one thousand recent community science records from the Northeastern United States (https://www.inaturalist.org/observations?place_id=52339,42,48,51&amp;subview=map&amp;taxon_id=127747) including 45 from diverse sites across New Hampshire may lead one to question an assessment that this species is “declining” in that state (Matthiasson &amp; Rehan 2019). There were 76 unique collection events for this species in Connecticut after 2000, and 65 unique collection events before 1999, suggesting that the status of this species in Connecticut is stable (formal rank not yet assigned) .</p><p>Subgenus Seladonia Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFABFFD3FF50581FFDB3FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505E8CFE46FD96.text	1458879AFFA8FFD3FF505E8CFE46FD96.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictus (Seladonia) confusus subsp. confusus Smith 1853	<div><p>Halictus (Seladonia) confusus confusus Smith, 1853</p><p>Confusing Metallic-Furrow Bee</p><p>Notes: This Holarctic species is widespread and common in Connecticut and regionally.</p><p>Genus Lasioglossum Curtis</p><p>Reference: Gardener &amp; Gibbs (2022, 2023); Gibbs (2009, 2010, 2011, 2012); Gibbs et al. (2013); McGinley (1986)</p><p>Subgenus Dialictus Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505E8CFE46FD96	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505C08FB58FD46.text	1458879AFFA8FFD3FF505C08FB58FD46.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) admirandum (Sandhouse 1924) H	<div><p>Lasioglossum (Dialictus) admirandum (Sandhouse, 1924)</p><p>Admirable Metallic-Sweat Bee</p><p>Notes: Habitat associations for this species in Connecticut include agricultural land, a suburban neighborhood, and beach dunes. Its status and identification were clarified by Gibbs (2010, 2011).</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505C08FB58FD46	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505D58FC49FBD9.text	1458879AFFA8FFD3FF505D58FC49FBD9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) albipenne (Robertson 1890) F	<div><p>Lasioglossum (Dialictus) albipenne (Robertson, 1890)</p><p>White-winged Metallic-Sweat Bee</p><p>= Halictus (Chloralictus) basilicus Sandhouse, 1924:36 . (Connecticut holotype). Synonymy by Gibbs (2010).</p><p>Holotype. Male USA: Connecticut: Litchfield Co.: Colebrook, 1-7 September, W. M. Wheeler (USNM).</p><p>Notes: There are only nine records for this species in the state, including the type and the one reported in Viereck et al. (1916) [as Halictus albipennis Robertson], collected in New Haven (New Haven County) on 17 June 1905. Known habitat associations include agricultural land and beach dunes.</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505D58FC49FBD9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505AC1FC16FAED.text	1458879AFFA8FFD3FF505AC1FC16FAED.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) anomalum (Robertson 1892) F	<div><p>Lasioglossum (Dialictus) anomalum (Robertson, 1892)</p><p>Two-celled Metallic-Sweat Bee</p><p>Notes: Lasioglossum anomalum is unevenly distributed but locally numerous, with 87% percent of records for this species (n = 214) in Connecticut collected at the CAES experimental farm in Hamden (New Haven County) from various projects, including a study of alternative floral resources.</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505AC1FC16FAED	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505B35FE70F9F1.text	1458879AFFA8FFD3FF505B35FE70F9F1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) bruneri (Crawford 1902) F	<div><p>Lasioglossum (Dialictus) bruneri (Crawford, 1902)</p><p>Bruner’s Metallic-Sweat Bee</p><p>Notes: Lasioglossum bruneri has been found throughout most of Connecticut (except Windham County) in habitats such as powerline ROW, sandplain remnants, agricultural land, beach dunes, marsh, and grassy fields. It is a known urban associate .</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505B35FE70F9F1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD3FF505829FCB3F8D9.text	1458879AFFA8FFD3FF505829FCB3F8D9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) cattellae (Ellis 1913)	<div><p>Lasioglossum (Dialictus) cattellae (Ellis, 1913)</p><p>Catell’s Metallic-Sweat Bee</p><p>Notes: Although a specimen voucher was not able to be reconfirmed by the time of publication, we are including this species because we do know that the specimen was determined by J. S. Ascher and confirmed by J. Gibbs and was located within the collections of P. Gambino. We include Fairfield County for this species as P. Gambino collected primarily in the town of Greenwich.</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD3FF505829FCB3F8D9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA8FFD2FF5059C1FBF8FF43.text	1458879AFFA8FFD2FF5059C1FBF8FF43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) coeruleum (Robertson 1893) F	<div><p>Lasioglossum (Dialictus) coeruleum (Robertson, 1893)</p><p>Blue Metallic-Sweat Bee</p><p>Notes: Milam et al. (2022) have found this wood-nesting species to be strongly associated with the forest mid-story and canopy in Massachusetts. It has been found in Connecticut forests, as well as powerline ROW, sandplain remnants, an arboretum, a coastal wildlife preserve, and agricultural land.</p></div>	https://treatment.plazi.org/id/1458879AFFA8FFD2FF5059C1FBF8FF43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA9FFD2FF505F54FEF8FD8F.text	1458879AFFA9FFD2FF505F54FEF8FD8F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) coreopsis (Robertson 1902) NH	<div><p>Lasioglossum (Dialictus) coreopsis (Robertson, 1902)</p><p>Tickseed Metallic-Sweat Bee</p><p>Notes: The first known record of this species in Connecticut was captured on borage ( Borago officinalis) in a floral preference study in 2004 at CAES Lockwood Farm, with subsequent detections in powerline rights of way documented in Wagner et al. (2014a) and in a grassland near an airport (H. Baranowski unpublished data.). This southern species reaches its northeastern range limits in Massachusetts (Veit et al. 2022[“2021”]) and is uncommon in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFA9FFD2FF505F54FEF8FD8F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA9FFD2FF505C10FD89FC93.text	1458879AFFA9FFD2FF505C10FD89FC93.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) cressonii (Robertson 1890) F	<div><p>Lasioglossum (Dialictus) cressonii (Robertson, 1890)</p><p>Cresson’s Metallic-Sweat Bee</p><p>Notes: This species is widespread in Connecticut and can be found in many habitats such as agricultural land, powerline ROW, sandplain remnants, inland wetlands, coastal wildlife management areas, meadows, beach dunes, and suburban neighborhoods.</p></div>	https://treatment.plazi.org/id/1458879AFFA9FFD2FF505C10FD89FC93	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA9FFD2FF505D04FBE9FAE2.text	1458879AFFA9FFD2FF505D04FBE9FAE2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) ellisiae (Sandhouse 1924)	<div><p>Lasioglossum (Dialictus) ellisiae (Sandhouse, 1924)</p><p>Ellis’ Epauletted Metallic-Sweat Bee</p><p>Notes: Although this species was not reported from Connecticut in Gardner &amp; Gibbs (2023), recent surveys have detected this species in Hartford and Windham counties in Connecticut. With further study more examples of the northern L. ellisiae, may be verified, especially from places such as Litchfield County, mixed in with its cryptic but more southern-distributed sister species L. tegulare .</p><p>Lasioglossum (Dialictus) ephialtum Gibbs, 2010</p><p>Nightmarish Metallic-Sweat Bee</p><p>Notes: The first known records in Connecticut for this recently described species (Gibbs 2010) are two females that were found burrowing in a window box in West Haven (New Haven County) on 26 May 1946. Lasioglossum ephialtum was the most abundant species captured in the Grass Island bee survey (n = 1,082) (Zarrillo &amp; Stoner 2019) and has been found throughout the state (except for Tolland County) .</p></div>	https://treatment.plazi.org/id/1458879AFFA9FFD2FF505D04FBE9FAE2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA9FFD2FF505B35FD89F94A.text	1458879AFFA9FFD2FF505B35FD89F94A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) fattigi (Mitchell 1960)	<div><p>Lasioglossum (Dialictus) fattigi (Mitchell, 1960)</p><p>Fattig’s Metallic-Sweat Bee</p><p>Notes: This uncommon species was recently documented in Connecticut in a sand plain at Windham</p><p>Airport.</p><p>Material examined: Windham Co.: Willimantic: 10 May 2023, coll. H. Baranowski, 1 ♀, UCMS, det. M.F. Veit and re-examined by T. A. Zarrillo 2023, netted from Potentilla canadensis; 41.7497 -72.1789, 22 May 2023, coll. D.L. Wagner, 1 ♀, UCMS, det. M. F.Veit and re-examined by T. A. Zarrillo 2023, pan trap in pine barren; 7 July 2023, coll. H. Baranowski, 41.7505 -72.1818, 1 ♀, UCMS, det. M.F. Veit and re-examined by T. A. Zarrillo 2023, netted from Baptisia tinctoria .</p></div>	https://treatment.plazi.org/id/1458879AFFA9FFD2FF505B35FD89F94A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFA9FFD5FF50594DFE12FF42.text	1458879AFFA9FFD5FF50594DFE12FF42.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) foveolatum (Robertson 1902) NH	<div><p>Lasioglossum (Dialictus) foveolatum (Robertson, 1902)</p><p>Foveolate Metallic-Sweat Bee</p><p>Notes: The only record for this uncommon species in Connecticut was a female collected in a sandplain remnant [originally determined as L. supraclypeatum (Mitchell, 1960) by S. Droege, now considered a junior synonym (Gibbs 2011)] .</p><p>Material examined. New Haven Co.: Wallingford: “Toelles Rd., Cytech Corp.”, 41.43194 -72.84, 31 May 2000, coll. J. Smith &amp; D. Martin, 1 ♀, UCMS, det. S. Droege 2006 and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00027367 .</p></div>	https://treatment.plazi.org/id/1458879AFFA9FFD5FF50594DFE12FF42	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505F54FBEBFDB5.text	1458879AFFAEFFD5FF505F54FBEBFDB5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) georgeickworti Gibbs 2011	<div><p>Lasioglossum (Dialictus) georgeickworti Gibbs, 2011</p><p>George’s Metallic-Sweat Bee</p><p>Notes: This species, recently described from a specimen collected in a gravel pit in Massachusetts, is associated with sandy habitats (Gibbs 2011) . A Connecticut paratype (AMNH _ BEE 00141892) reported in Gibbs (2011) has a correct collection date of 11 May 1971, not 1 May 1973. This species has been collected in Connecticut in a coastal preserve on beach dunes and near coastal scrub (Zarrillo &amp; Stoner 2019) .</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505F54FBEBFDB5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505C6DFCE8FD65.text	1458879AFFAEFFD5FF505C6DFCE8FD65.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) gotham Gibbs 2011	<div><p>Lasioglossum (Dialictus) gotham Gibbs, 2011</p><p>Gotham Metallic-Sweat Bee</p><p>Notes: This recently described species has been collected in powerline ROW, agricultural land, suburban neighborhoods, and a coastal wildlife preserve in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505C6DFCE8FD65	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505CBEFDB7FC4C.text	1458879AFFAEFFD5FF505CBEFDB7FC4C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) heterognathus (Mitchell 1960) F	<div><p>Lasioglossum (Dialictus) heterognathus (Mitchell, 1960)</p><p>Angle-jawed Metallic-Sweat Bee</p><p>Notes: Most records (n = 30, 88%) were collected before the year 2004, with scant information about habitat or floral associations. The most recent specimens were collected in a limestone quarry, powerline ROW near a vegetable farm, and a pollinator garden near agricultural land. We follow Gardner and Gibbs (2022) in treating the specific epithet as nondeclinable.</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505CBEFDB7FC4C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505A57FE4AFAEE.text	1458879AFFAEFFD5FF505A57FE4AFAEE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) hitchensi Gibbs 2012	<div><p>Lasioglossum (Dialictus) hitchensi Gibbs, 2012</p><p>Hitchen’s Metallic-Sweat Bee</p><p>Notes: This recently described species is notable due to past confusion with other species, such as L. a dmirandum (Gibbs 2010) and other members of the L. viridatum species group. The first record we could trace for Connecticut was collected in Mansfield, “Gurleyville” (Tolland County) on 6 May 1972 by A. G. Thornton, and it has subsequently been found in five other counties. This species has been captured on powerline ROW, agricultural land, sandplain remnants, grassland, the edge of a swamp, and a marsh. Corbin et al. (2021) suggest that L. hitchensi exhibits a bivoltine phenology.</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505A57FE4AFAEE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505B31FCADF9FD.text	1458879AFFAEFFD5FF505B31FCADF9FD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) illinoense (Robertson 1892) H	<div><p>Lasioglossum (Dialictus) illinoense (Robertson, 1892)</p><p>Illinois Metallic-Sweat Bee</p><p>Notes: This southern species reaches its northern range limit in Massachusetts (Lerman &amp; Milam 2016) and is not common in Connecticut. It has been found in habitats such as sandplain remnants, agricultural land, suburban neighborhoods, and a coastal wildlife preserve.</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505B31FCADF9FD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD5FF505826FE40F8AF.text	1458879AFFAEFFD5FF505826FE40F8AF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) imitatum (Smith 1853) F	<div><p>Lasioglossum (Dialictus) imitatum (Smith, 1853)</p><p>Coarse-haired Metallic-Sweat Bee</p><p>Notes: This species has been collected in agricultural land, sandplain remnants, quarries, grassy fields, and inland wetlands in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD5FF505826FE40F8AF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAEFFD4FF505977FB3BFF42.text	1458879AFFAEFFD4FF505977FB3BFF42.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) katherineae Gibbs 2011	<div><p>Lasioglossum (Dialictus) katherineae Gibbs, 2011</p><p>Katherine’s Metallic-Sweat Bee</p><p>Notes: This uncommon species is known in Connecticut from 14 female specimens, five captured in a pollinator garden at the CAES experimental farm (Lockwood Farm) in Hamden (New Haven County), one captured on the CAES main campus in New Haven ( New Haven County), and eight captured on powerline ROW in South Windsor ( Hartford County) and Ellington ( Tolland County). It has been suggested that this species may have an association with sandplains or former gravel pits ( Gibbs 2011; Veit et al. (2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFFAEFFD4FF505977FB3BFF42	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF505F54FC93FE7D.text	1458879AFFAFFFD4FF505F54FC93FE7D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) laevissimum (Smith 1853) H	<div><p>Lasioglossum (Dialictus) laevissimum (Smith, 1853)</p><p>Smoothest Metallic-Sweat Bee</p><p>Notes: This species is scarce in Connecticut, with only seven known occurrences from habitats such as sandplain remnants, agricultural land, and near a reservoir.</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF505F54FC93FE7D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF505FA5FED5FD64.text	1458879AFFAFFFD4FF505FA5FED5FD64.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) leucocomus (Lovell 1908) F	<div><p>Lasioglossum (Dialictus) leucocomus (Lovell, 1908)</p><p>Angle-faced Metallic-Sweat Bee</p><p>Notes: This common species seems to be found in more diverse habitats than its lookalike, L. pilosum, with which it has been historically confused. In Connecticut L. leucocomus has been captured in powerline ROW, sandy coastal areas, grassy fields, sandplain remnants, meadows, suburban neighborhoods, agricultural land, and wildlife management areas.</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF505FA5FED5FD64	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF505CBFFEFEFC16.text	1458879AFFAFFFD4FF505CBFFEFEFC16.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) lineatulum (Crawford 1906) F	<div><p>Lasioglossum (Dialictus) lineatulum (Crawford, 1906)</p><p>Lineated Metallic-Sweat Bee</p><p>Notes: This species has been found in habitats such as sandplain remnants, agricultural land, and a coastal wildlife refuge.</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF505CBFFEFEFC16	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF505D88FD46FB63.text	1458879AFFAFFFD4FF505D88FD46FB63.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) lionotus (Sandhouse 1923) NH	<div><p>Lasioglossum (Dialictus) lionotus (Sandhouse, 1923)</p><p>Smooth-backed Metallic-Cuckoo-Sweat Bee</p><p>Notes: There are only two records for this parasitic species in Connecticut, a male collected on 19 August 2004 and a female collected on 20 September 2010, both captured at the CAES experimental farm in Hamden (New Haven County). We follow Gardner and Gibbs (2022) in treating the specific epithet as nondeclinable .</p><p>Material examined. See Zarrillo et al. (2016)</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF505D88FD46FB63	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF505ABBFDDEF983.text	1458879AFFAFFFD4FF505ABBFDDEF983.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) marinum (Crawford 1904) F	<div><p>Lasioglossum (Dialictus) marinum (Crawford, 1904)</p><p>Marine Metallic-Sweat Bee</p><p>Notes: This striking, uncommon bee is a sand dune specialist restricted to the coast of the eastern United States from Massachusetts (Veit et al. 2022[“2021”]) to Alabama (Gibbs 2011), and has been found in Connecticut at intertidal beaches and shores along the coast (unpublished). In Connecticut this species has been collected on American sea-rocket ( Cakile edentula) and Carolina sea-lavender ( Limonium carolinianum), plants which are specific to beach dunes and intertidal flats, and on beach rose ( Rosa rugosa), a non-native plant which has become naturalized in the Connecticut landscape.</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF505ABBFDDEF983	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD4FF50581BFD26F8DD.text	1458879AFFAFFFD4FF50581BFD26F8DD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) michiganense (Mitchell 1960) NH	<div><p>Lasioglossum (Dialictus) michiganense (Mitchell, 1960)</p><p>Michigan Metallic-Cuckoo-Sweat Bee</p><p>Notes: There are four records in Connecticut for this uncommon parasitic species, captured at Grass Island Preserve , Guilford (New Haven County), on the beach dunes and coastal scrub on 30 April 2011, 23 July 2011 , and 16 September 2012.</p><p>Material examined. See Zarrillo et al. (2016)</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD4FF50581BFD26F8DD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFAFFFD7FF5059C5FE4FFF43.text	1458879AFFAFFFD7FF5059C5FE4FFF43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) nigroviride (Graenicher 1911) F	<div><p>Lasioglossum (Dialictus) nigroviride (Graenicher, 1911)</p><p>Black-and-green Metallic-Sweat Bee</p><p>Notes: This species has been collected in habitats such as sandplain remnants, powerline ROW, and agricultural land, and has been captured visiting chervil ( Anthriscus sp.), cabbage ( Brassica oleracea), and sweet pepperbush ( Clethra alnifolia).</p></div>	https://treatment.plazi.org/id/1458879AFFAFFFD7FF5059C5FE4FFF43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF505F54FDE7FD8F.text	1458879AFFACFFD7FF505F54FDE7FD8F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) oblongum (Lovell 1905) F	<div><p>Lasioglossum (Dialictus) oblongum (Lovell, 1905)</p><p>Oblong Metallic-Sweat Bee</p><p>Notes: Our specimens match Mitchell (1960) and Gibbs (2010, 2011), however the type specimen of L. oblongum is lost. This was one of the most abundant species collected in Zarrillo &amp; Stoner (2019) (n = 436). The series collected from Grass Island were determined by J. Gibbs, S. Droege, and T. A. Zarrillo, and while it is uncertain if they are true L. oblongum as described by Lovell (1905), our specimens are distinct from L. obscurum, L. abanci sensu Gibbs, and L. planatum .</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF505F54FDE7FD8F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF505C10FDBDFCBF.text	1458879AFFACFFD7FF505C10FDBDFCBF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) obscurum (Robertson 1892) F	<div><p>Lasioglossum (Dialictus) obscurum (Robertson, 1892)</p><p>Dark Metallic-Sweat Bee</p><p>Notes: This species is not well known in Connecticut and has been found on agricultural land only on five farms in three different counties.</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF505C10FDBDFCBF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF505D60FC8DFC43.text	1458879AFFACFFD7FF505D60FC8DFC43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) oceanicum (Cockerell 1916) F	<div><p>Lasioglossum (Dialictus) oceanicum (Cockerell, 1916)</p><p>Oceanic Metallic-Sweat Bee</p><p>Notes: This species, reported by Mitchell (1960) as Dialictus nymphaearum (see Gibbs 2010, Gibbs et al. 2017), is common across Connecticut and has been found in habitats such as sandplain remnants, agricultural land, meadows, coastal parks, grassy fields, and powerline ROW.</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF505D60FC8DFC43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF595A54FEA2FAAB.text	1458879AFFACFFD7FF595A54FEA2FAAB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) perpunctatum (Ellis 1913) NH	<div><p>Lasioglossum (Dialictus) perpunctatum (Ellis, 1913)</p><p>Densely-punctate Metallic-Sweat Bee</p><p>Notes: This species is only known in Connecticut from seven records, with the most recent collected by K. Urban-Mead on black-eyed Susan ( Rudbeckia sp.) along a roadside adjacent to a conifer forest in 2013. This species has also been collected in habitats such as a sandplain remnant, a town park with a heavy forest component, and a state forest .</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF595A54FEA2FAAB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF505B6CFCDEF9CB.text	1458879AFFACFFD7FF505B6CFCDEF9CB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) pilosum (Smith 1853) F	<div><p>Lasioglossum (Dialictus) pilosum (Smith, 1853)</p><p>Pilose Metallic-Sweat Bee</p><p>Notes: Our locality records for females of this species strongly concur with the sand/gravel habitat association suggested in Goldstein &amp; Ascher (2016) and (Veit et al. 2022[“2021”]).At least 79% of female specimen records come from habitats such as inland and coastal dunes, quarries, sandplain remnants, powerline ROW, or other locations known to have a large sand/gravel component in their soils (such as local airports and land in the central Connecticut River Valley and the eastern outwash plains). Connecticut males have not yet been consistently separated from its sister species L. leucocomus with confidence .</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF505B6CFCDEF9CB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFACFFD7FF5058CCFC25F833.text	1458879AFFACFFD7FF5058CCFC25F833.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) planatum (Lovell 1905) F	<div><p>Lasioglossum (Dialictus) planatum (Lovell, 1905)</p><p>Lovell’s Metallic-Sweat Bee</p><p>Notes: There are six known records of this uncommon species in Connecticut, five collected in powerline ROW by M.F. Veit in 2017 in South Windsor (Hartford County) and Ellington ( Tolland County), and one captured during a BioBlitz in Tarrrywile Park in 2001 in Danbury ( Fairfield County). The name of this species has been recently resurrected from synonomy with L. oblongum (Gibbs 2010) .</p></div>	https://treatment.plazi.org/id/1458879AFFACFFD7FF5058CCFC25F833	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505BB2FD00F8B7.text	1458879AFFADFFD6FF505BB2FD00F8B7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Halictus tegularis Robertson 1890	<div><p>Halictus tegularis Robertson, 1890: 318 (Connecticut lectotype designated by Cresson, 1928).</p><p>Lectotype. Female: USA: Connecticut: 6 June 1878, W.H. Patton (ANSP).</p><p>Notes: This species is common in Connecticut and has been collected in powerline ROW, grassy fields, agricultural land, coastal areas, suburban neighborhoods, and meadows. The type series comprising syntypes from Connecticut, District of Columbia, Illinois, Montana, California, and Mexico, was surely composite, and even after selection of Connecticut as the lectotype locality (Cresson, 1928) it has been much-confused with other species in the L. gemmatum complex, especially L. ellisiae .</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505BB2FD00F8B7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505ED5FC67FE35.text	1458879AFFADFFD6FF505ED5FC67FE35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) platyparius (Robertson 1895) L	<div><p>Lasioglossum (Dialictus) platyparius (Robertson, 1895)</p><p>Knob-lipped Metallic-Cuckoo-Sweat Bee</p><p>Notes: This uncommon parasitic species has been found at the following three locations in Connecticut: the New Haven campus of the CAES (New Haven County), the CAES experimental farm in Hamden (New Haven County), and in a meadow at the White Memorial Conservation Center in Litchfield (Litchfield County). We follow Gardner and Gibbs (2022) in treating the specific epithet as nondeclinable.</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505ED5FC67FE35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505FEDFC16FD1D.text	1458879AFFADFFD6FF505FEDFC16FD1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) pruinosum (Robertson 1892) H	<div><p>Lasioglossum (Dialictus) pruinosum (Robertson, 1892)</p><p>Pruinose Metallic-Sweat Bee</p><p>Notes: This uncommon species was detected in the Mount Carmel neighborhood of Hamden (New Haven County) in 1915, and again in 2003 on the sandy grounds surrounding Bradley International Airport in Windsor Locks ( Hartford County) in Connecticut. Interestingly, H. Baranowski found L. pruinosum in 2023 on the sandy grounds near the Windham Airport in Willimantic ( Windham County) .</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505FEDFC16FD1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505C85FD82FCCD.text	1458879AFFADFFD6FF505C85FD82FCCD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) smilacinae (Robertson 1897) H	<div><p>Lasioglossum (Dialictus) smilacinae (Robertson, 1897)</p><p>Sarsaparilla Metallic-Sweat Bee</p><p>Notes: In Connecticut this species has been collected on agricultural land, suburban neighborhoods, a cedar swamp, and a coastal wildlife refuge.</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505C85FD82FCCD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505DD5FE29FB35.text	1458879AFFADFFD6FF505DD5FE29FB35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) subviridatum (Cockerell 1938) H	<div><p>Lasioglossum (Dialictus) subviridatum (Cockerell, 1938)</p><p>Polished-scutum Metallic-Sweat Bee</p><p>Notes: This wood-nesting species was commonly misidentified as L. oblongum (Lovell) prior to Gibbs (2010, 2011). Our specimens that predate those publications have been re-examined and verified by J. Gibbs. Lasioglossum subviridatum has been collected on agricultural land, powerline ROW, forest, and a coastal wildlife refuge in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505DD5FE29FB35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505AEDFBF9FAE5.text	1458879AFFADFFD6FF505AEDFBF9FAE5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) taylorae Gibbs 2010	<div><p>Lasioglossum (Dialictus) taylorae Gibbs, 2010</p><p>Taylor’s Metallic-Sweat Bee</p><p>Notes: Lasioglossum taylore is not well known in Connecticut, detected only in 1959 (n = 1) and 2017 (n</p><p>= 8), the latter being collected in powerline ROW and a forest (Wagner et al. 2019).</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505AEDFBF9FAE5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFD6FF505B3DFDD8FA68.text	1458879AFFADFFD6FF505B3DFDD8FA68.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) tegulare (Robertson 1890) F	<div><p>Lasioglossum (Dialictus) tegulare (Robertson, 1890)</p><p>Common Epauletted Metallic-Sweat Bee</p></div>	https://treatment.plazi.org/id/1458879AFFADFFD6FF505B3DFDD8FA68	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFADFFC9FF50596FFDEAFEFA.text	1458879AFFADFFC9FF50596FFDEAFEFA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) timothyi Gibbs 2010	<div><p>Lasioglossum (Dialictus) timothyi Gibbs, 2010</p><p>Timothy’s Metallic-Sweat Bee</p><p>Notes: Lasioglossum timothyi is also not well known in Connecticut, however it was fairly abundant at the</p><p>Montague Plains WMA (Franklin County) in Massachusetts (J. Milam pers. comm.) .</p><p>Material examined. New Haven Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.91972&amp;materialsCitation.latitude=41.33083" title="Search Plazi for locations around (long -72.91972/lat 41.33083)">New Haven</a>: 41.33083 -72.91972, 15 March–5 April 2016, coll. M. Lowry, 1 ♀, CAES, det. S. Droege 2017 and re-examined by T.A. <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.508&amp;materialsCitation.latitude=41.908" title="Search Plazi for locations around (long -72.508/lat 41.908)">Zarrillo</a> 2022, bee bowl, UCMS _ ENT 00075428; Tolland Co.: Ellington: 41.908 -72.508, 15 June 2017, coll. M.F. Veit, 1 ♀, CAES, det. M.F. Veit and re-examined by T.A. Zarrillo 2022, UCMS _ ENT 00082285; 1 ♀, personal collection, det. M.F. Veit; 17 July 2017, coll. M.F. Veit, 1 ♀, personal collection, det. M.F. Veit.</p></div>	https://treatment.plazi.org/id/1458879AFFADFFC9FF50596FFDEAFEFA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF595F1CFCB2FD1B.text	1458879AFFB2FFC9FF595F1CFCB2FD1B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) trigeminum Gibbs. The 2011	<div><p>Lasioglossum (Dialictus) trigeminum Gibbs, 2011</p><p>Notes: Historic material of L. versatum at CAES has been rechecked for possible L. trigeminum and L. callidum, however Connecticut material at AMNH, UCMS, YPM, and MCZ should be re-examined. A female of this species was recently captured on chestnut flowers ( Castanea seguinii) in Connecticut at the CAES chestnut orchard in Hamden.</p><p>Material examined. New Haven Co.: Hamden: “Lockwood Farm, 890 Evergreen Avenue”, 41.40583 -72.90472, 6 July 2021, coll. J. Durrell, 1 ♀, CAES, det. M.F. Veit 2021 and re-examined by T. A. Zarrillo 2022, netted from Castanea seguinii, UCMS _ENT 00077625 .</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF595F1CFCB2FD1B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF505CFCFC0DFBBD.text	1458879AFFB2FFC9FF505CFCFC0DFBBD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) versans (Lovell 1905) F	<div><p>Lasioglossum (Dialictus) versans (Lovell, 1905)</p><p>Dull Metallic-Sweat Bee</p><p>= Halictus (Chloralictus) consonus Sandhouse, 1924: 30 . (Connecticut holotype). Synonymized by Mitchell (1960).</p><p>Holotype. Male USA: Connecticut: Litchfield Co.: Colebrook, 1-7 September, W. M. Wheeler (USNM).</p><p>Notes: This species has been found in habitats such as powerline ROW, sandplain remnants, forests, cedar swamps, agricultural land, and a coastal wildlife refuge in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF505CFCFC0DFBBD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF505A65FD1AFAA5.text	1458879AFFB2FFC9FF505A65FD1AFAA5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) versatum (Robertson 1902) F	<div><p>Lasioglossum (Dialictus) versatum (Robertson, 1902)</p><p>Experienced Metallic-Sweat Bee</p><p>Notes: Historic material at CAES has been rechecked for possible L. trigeminum and L. callidum, however Connecticut material at AMNH, YPM, UCMS, and MCZ needs to be re-examined. This species is common in Connecticut and has been found in habitats such as powerline ROW, grassy fields, inland wetlands, coastal locations, sandplain remnants, and wildflower meadows.</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF505A65FD1AFAA5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF505B7DFE9DFA55.text	1458879AFFB2FFC9FF505B7DFE9DFA55.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) vierecki (Crawford 1904) F	<div><p>Lasioglossum (Dialictus) vierecki (Crawford, 1904)</p><p>Viereck’s Metallic-Sweat Bee</p><p>Notes: Lasioglossum vierecki, a sand specialist, is commonly found in open, sandy locations in</p><p>Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF505B7DFE9DFA55	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF50584DFEDBF959.text	1458879AFFB2FFC9FF50584DFEDBF959.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) viridatum (Lovell 1905) F	<div><p>Lasioglossum (Dialictus) viridatum (Lovell, 1905)</p><p>Verdant Metallic-Sweat Bee</p><p>Notes: This species is likely under-recorded as it belongs to a taxonomically challenging complex. Confirmed records have been collected in habitats such as a small, diversified farm, coastal marsh, beach dunes, and coastal scrub.</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF50584DFEDBF959	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB2FFC9FF505941FD25F809.text	1458879AFFB2FFC9FF505941FD25F809.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) weemsi (Mitchell 1960) F	<div><p>Lasioglossum (Dialictus) weemsi (Mitchell, 1960)</p><p>Weem’s Metallic-Sweat Bee</p><p>Notes: This species is commonly caught in Connecticut in habitats such as suburban neighborhoods, agricultural land, meadows, and coastal parks.</p></div>	https://treatment.plazi.org/id/1458879AFFB2FFC9FF505941FD25F809	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFC8FF505ED5FE46FE1E.text	1458879AFFB3FFC8FF505ED5FE46FE1E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) zephyrus (Smith 1853) F	<div><p>Lasioglossum (Dialictus) zephyrus (Smith, 1853)</p><p>Zephyr Metallic-Sweat Bee</p><p>Notes: In addition to agricultural areas, Lasioglossum zephyrus has also been found in sandplain remnants and suburban neighborhoods in Connecticut. We follow Gardner and Gibbs (2022) in treating the specific epithet as nondeclinable.</p><p>Subgenus Evylaeus Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFC8FF505ED5FE46FE1E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFC8FF505F80FD9CFD17.text	1458879AFFB3FFC8FF505F80FD9CFD17.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Evylaeus) cinctipes (Provancher 1888) F	<div><p>Lasioglossum (Evylaeus) cinctipes (Provancher, 1888)</p><p>Band-legged Sweat Bee</p><p>Notes: This species has been found in habitats such as grassy fields, coastal wildlife refuge, pollinator garden, and sandplain remnants in Connecticut.</p><p>Subgenus Hemihalictus Cockerell</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFC8FF505F80FD9CFD17	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFC8FF505C8FFD31FC7F.text	1458879AFFB3FFC8FF505C8FFD31FC7F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) birkmanni (Crawford 1906) F	<div><p>Lasioglossum (Hemihalictus) birkmanni (Crawford, 1906)</p><p>Birkmann’s Sweat Bee</p><p>Notes: Halictus (Evylaeus) quadrimaculatus Robertson sensu Viereck et al. (1916), noted as occurring all over the state, likely included L. birkmanni, but confusion with true L. macoupinense sensu Gibbs et al. (2013) [= divergen s] is likely (see entry for the latter taxon below). Lasioglossum birkmanni has been collected in state parks, forests, and powerline ROW in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFC8FF505C8FFD31FC7F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFC8FF505DA7FC8AFB2F.text	1458879AFFB3FFC8FF505DA7FC8AFB2F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) foxii (Robertson 1895) F	<div><p>Lasioglossum (Hemihalictus) foxii (Robertson, 1895)</p><p>Fox’s Sweat Bee</p><p>Notes: This species has been found throughout the state in habitats such as powerline ROW, agricultural land, upland forest, coastal areas, and near inland wetlands.</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFC8FF505DA7FC8AFB2F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFC8FF505AF7FDEEFA17.text	1458879AFFB3FFC8FF505AF7FDEEFA17.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) inconditum (Cockerell 1916)	<div><p>Lasioglossum (Hemihalictus) inconditum (Cockerell, 1916)</p><p>Irregular Sweat Bee</p><p>Notes: The only record for this northern species in Connecticut was published in Gibbs et al. (2013) from Litchfield County. Regional specimens were cited by Mitchell (1960) as Evylaeus rufitarse (Cockerell) and other authors as Lasioglossum rufitarse (Zetterstedt) prior to Gibbs et al. (2013), which recognized this Holarctic species as distinct from Nearctic L. inconditum .</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFC8FF505AF7FDEEFA17	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB3FFCBFF505B8FFE2EFEFB.text	1458879AFFB3FFCBFF505B8FFE2EFEFB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) macoupinense (Robertson 1895) H	<div><p>Lasioglossum (Hemihalictus) macoupinense (Robertson, 1895)</p><p>Macoupin Sweat Bee</p><p>= Halictus 4-maculatus Robertson, 1890: 117 (replaced by Halictus macoupinensis Robertson, 1895, due to primary homonymy with Halictus quadricinctus Schenck, 1853] Connecticut lectotype of Halictus 4-maculatus designated by Cresson, 1928). Synonymy by Gibbs et al. (2013).</p><p>Lectotype. Female USA: Connecticut: New Haven Co.: Waterbury, 9 July 1879, W. H. Patton (ANSP).</p><p>Notes: Lasioglossum macoupinense sensu Gibbs et al. (2013) [= Evylaeus divergens (Lovell) sensu Mitchell, 1960], has a longer head than the otherwise similar L. birkmanni [= Evylaeus macoupinensis (Robertson) sensu Mitchell, 1960] and a generally more northern but broadly overlapping distribution. Gibbs et al. (2013) found that the type series Halictus 4-maculatus Robertson, 1890, was composite, comprising example of both of the abovementioned taxa, and that Cresson (1928) had designated a long-headed bee from Connecticut as the lectotype of H. 4-maculatus (evidently overlooking Robertson’s replacement name Halictus macoupinense). Choice of Connecticut not Illinois as the lectotype locality contradicted the original description of H. 4-maculatus as a broad-headed bee with the clypeus “hardly produced” and also contradicted the etymology of the replacement name, referencing Macoupin County, Illinois [only short-headed L. birkmanni was reported by Gibbs et al. (2013) from Illinois, and Macoupin County appears to be south of the predicted range of the long-headed taxon]. Here we follow Gibbs et al. (2013) and subsequent authors in using the name L. macoupinense for the long-headed bee best known historically as Evylaeus divergens .</p></div>	https://treatment.plazi.org/id/1458879AFFB3FFCBFF505B8FFE2EFEFB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCBFF505F1CFB9AFD8F.text	1458879AFFB0FFCBFF505F1CFB9AFD8F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) nelumbonis (Robertson 1890) NH	<div><p>Lasioglossum (Hemihalictus) nelumbonis (Robertson, 1890)</p><p>Lotus Sweat Bee</p><p>Notes: This distinctive species has been collected in a sandplain remnant, an arboretum, and sandy areas near agricultural land in Connecticut. Lasioglossum nelumbonis is newly confirmed for New Hampshire in an observation on iNaturalist (https://www.inaturalist.org/observations/131811071) .</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCBFF505F1CFB9AFD8F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCBFF505C10FA21FC48.text	1458879AFFB0FFCBFF505C10FA21FC48.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) pectinatum (Robertson 1890) L	<div><p>Lasioglossum (Hemihalictus) pectinatum (Robertson, 1890)</p><p>Ground Cherry Sweat Bee</p><p>Notes: Britton &amp; Viereck (1906) reported a single record of this Physalis specialist [as Halictus pectinatus Robertson] on American gooseberry ( Ribes oxyacanthoides), and this species was later reported for Connecticut in Mitchell (1960). Likely under-collected due to its host specialization (Veit et al. 2022[“2021”]), this species was not detected in Connecticut again until 2020 when C. T. Maier conducted a targeted search for this species on Physalis blooms.</p><p>Material examined. Litchfield Co.: Salisbury: “ 0.13 km NE jct. US <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.36781&amp;materialsCitation.latitude=42.0059" title="Search Plazi for locations around (long -73.36781/lat 42.0059)">Hwy.</a> 44 and Sunrise Ridge Rd. ”, 42.00590 -73.36781, 16 July 2020, coll. C. T . Maier, 4 ♀, CAES, det. T. A. Zarrillo 2022, netted from Physalis heterophylla, CAES _HYM 00018841, CAES _ HYM 00018842, CAES _ HYM 00018843, CAES _ HYM 00018844 .</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCBFF505C10FA21FC48	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCBFF505A52FDB8FAA5.text	1458879AFFB0FFCBFF505A52FDB8FAA5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Hemihalictus) pectorale (Smith 1853) F	<div><p>Lasioglossum (Hemihalictus) pectorale (Smith, 1853)</p><p>Rugose-chested Sweat Bee</p><p>Notes: This species is very common throughout Connecticut, found in habitats such as agricultural land, quarries, sandplain remnants, grassy fields, powerline ROW, coastal preserves, inland wetlands, and university plantings.</p><p>Subgenus Lasioglossum Curtis</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCBFF505A52FDB8FAA5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCBFF505B7DFB69FA4A.text	1458879AFFB0FFCBFF505B7DFB69FA4A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Lasioglossum) acuminatum McGinley 1986	<div><p>Lasioglossum (Lasioglossum) acuminatum McGinley, 1986</p><p>Acuminate Sweat Bee</p><p>Notes: Females of this species have been netted from fire cherry ( Prunus penyslvanica) and wild bergamot</p><p>( Monarda fistulosa) in Connecticut, in habitats such as powerline ROW and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCBFF505B7DFB69FA4A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCBFF50584DFE54F8FB.text	1458879AFFB0FFCBFF50584DFE54F8FB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Lasioglossum) athabascense (Sandhouse 1933)	<div><p>Lasioglossum (Lasioglossum) athabascense (Sandhouse, 1933)</p><p>Athabascan Sweat Bee</p><p>Notes: There are two Connecticut records reported for this species in McGinley (1986) ( Litchfield and Tolland Counties), and we also found a digitized record of a singleton collected in Storrs (Tolland County) from 1928 which was originally determined by McGinley (subsequently restudied by J.S. Ascher in 2008) .</p><p>Material examined. Tolland Co.: Mansfield: “Storrs”, 1928, coll. “Christen”, 1 ♀, UCMS, det. J.S. Ascher</p><p>2008, UCMS _ENT 00030727.</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCBFF50584DFE54F8FB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB0FFCAFF50591CFC8AFF6F.text	1458879AFFB0FFCAFF50591CFC8AFF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Lasioglossum) coriaceum (Smith 1853) F	<div><p>Lasioglossum (Lasioglossum) coriaceum (Smith 1853)</p><p>Leathery Sweat Bee</p><p>Notes: This common species has been found throughout Connecticut in many diverse habitats, including powerline ROW, sandplain remnants, and agricultural land.</p></div>	https://treatment.plazi.org/id/1458879AFFB0FFCAFF50591CFC8AFF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505EB0FDA1FDB8.text	1458879AFFB1FFCAFF505EB0FDA1FDB8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Lasioglossum) fuscipenne (Smith 1853) F	<div><p>Lasioglossum (Lasioglossum) fuscipenne (Smith, 1853)</p><p>Dark-winged Sweat Bee</p><p>Notes: Connecticut is located close to the northeastern range limit of this species (McGinley 1986). Seventy percent of our specimen records (n = 43) have been collected in the southern coastal counties of Connecticut, in habitats such as powerline ROW, sandplain remnants, and a coastal wildlife refuge.</p><p>Subgenus Leuchalictus Warncke</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505EB0FDA1FDB8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505C62FE67FD4C.text	1458879AFFB1FFCAFF505C62FE67FD4C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Leuchalictus) leucozonium subsp. leucozonium (Schrank 1781) E F	<div><p>Lasioglossum (Leuchalictus) leucozonium leucozonium (Schrank, 1781)</p><p>White-zoned Sweat Bee</p><p>Notes: This exotic bee is widespread and relatively common throughout Connecticut. It has been collected in habitats such as powerline ROW, sandplain remnants, meadows, agricultural land, urban areas, pollinator gardens, and a coastal wildlife refuge.</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505C62FE67FD4C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505D56FD85FBFD.text	1458879AFFB1FFCAFF505D56FD85FBFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Leuchalictus) zonulus subsp. zonulus (Smith 1848) E F	<div><p>Lasioglossum (Leuchalictus) zonulus zonulus (Smith, 1848)</p><p>Bull-headed Sweat Bee</p><p>Notes: Since Zarrillo et al. (2016), four more females of this exotic bee have been collected in Connecticut, two on the campus of the University of Bridgeport (Fairfield County) in 2018, and two at the White Memorial Conservation Center in Litchfield ( Litchfield County) in 2019. We follow Gibbs et al. (2023) in treating the specific epithet as nondeclinable .</p><p>Subgenus Sphecodogastra Ashmead</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505D56FD85FBFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505A25FE9DFA81.text	1458879AFFB1FFCAFF505A25FE9DFA81.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Sphecodogastra) oenotherae (Stevens 1920) F	<div><p>Lasioglossum (Sphecodogastra) oenotherae (Stevens, 1920)</p><p>Eastern Evening Primrose-Sweat Bee</p><p>Notes: This specialist of evening primrose ( Oenothera sp.) (Hurd 1979) has been collected in sandplain remnants, agricultural land, forest, a pollinator meadow, a suburban neighborhood, and a coastal wildlife refuge in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505A25FE9DFA81	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505B19FC52F9B6.text	1458879AFFB1FFCAFF505B19FC52F9B6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Sphecodogastra) quebecense (Crawford 1907) F	<div><p>Lasioglossum (Sphecodogastra) quebecense (Crawford, 1907)</p><p>Quebec Sweat Bee</p><p>Notes: This species is commonly found across Connecticut in habitats such as powerline ROW, sandplain remnants, inland wetlands, state forests, agricultural land, and coastal areas.</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505B19FC52F9B6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCAFF505869FE73F8F4.text	1458879AFFB1FFCAFF505869FE73F8F4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Sphecodogastra) truncatum (Robertson 1901) F	<div><p>Lasioglossum (Sphecodogastra) truncatum (Robertson, 1901)</p><p>Truncate Sweat Bee</p><p>Notes: This species is known only historically from Connecticut, having twenty-four specimen records with years spanning 1904–1933 .</p><p>Genus Sphecodes Latreille</p><p>Reference: Mitchell (1960)</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCAFF505869FE73F8F4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB1FFCDFF50592EFEB9FE85.text	1458879AFFB1FFCDFF50592EFEB9FE85.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes aroniae Mitchell 1960	<div><p>Sphecodes aroniae Mitchell, 1960 ( ranunculi group)</p><p>Aronia Blood Bee</p><p>Notes: This species is near its northern range limit in Massachusetts (Veit et al. 2022[“2021”]), and has been confused historically with more northern, but widely overlapping, S. ranunculi Robertson (Giles &amp; Ascher 2006) . In Connecticut this species has been collected in places such as sandplain remnants, sandy agricultural sites, powerline ROW, and in several groves of mixed forests containing coniferous and broad-leaved trees near inland wetlands.</p></div>	https://treatment.plazi.org/id/1458879AFFB1FFCDFF50592EFEB9FE85	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF505F1EFD82FD8B.text	1458879AFFB6FFCDFF505F1EFD82FD8B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes atlantis Mitchell 1956	<div><p>Sphecodes atlantis Mitchell, 1956 ( mandibularis group)</p><p>Atlantis Blood Bee</p><p>Notes: This species is difficult to identify based on structural characters, but many examples are so tiny as to rule out most other regional species. In Connecticut it has been detected in sandplain remnants, powerline ROW, agricultural fields, and coastal dunes.</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF505F1EFD82FD8B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF505C0CFAB0FD45.text	1458879AFFB6FFCDFF505C0CFAB0FD45.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes autumnalis Mitchell 1956	<div><p>Sphecodes autumnalis Mitchell, 1956 ( mandibularis group)</p><p>Autumnal Blood Bee</p><p>Notes: This species is expected in the fall visiting goldenrods in association with its host Perdita octomaculata</p><p>(Eickwort 1977). It has been found in sandplain remnants and near the edge of a pond in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF505C0CFAB0FD45	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF505D5DFE02FB66.text	1458879AFFB6FFCDFF505D5DFE02FB66.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes banksi Lovell 1909	<div><p>Sphecodes banksi Lovell, 1909 ( mandibularis group)</p><p>Banks’ Blood Bee</p><p>Notes: Veit et al. (2022[“2021”]) and Gibbs et al. (2017a) note that this species may be associated with sandy sites where its likely host Lasioglossum vierecki is present. In Connecticut, we have found both species present in bee bowls deployed on the same dates at two sandy locations.</p><p>Material examined. New London Co.: Waterford: “ <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.16155&amp;materialsCitation.latitude=41.41428" title="Search Plazi for locations around (long -72.16155/lat 41.41428)">Vauxhall Rd.</a> ”, 41.41428 -72.16155, 1–13 May 2007, coll. N. Bricker &amp; D.L. Wagner, 1 ♀, UCMS, det. J.S. Ascher 2007, bee bowl, UCMS _ ENT 00023619; Griswold, “ CAES Research Center, 190 <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-71.87722&amp;materialsCitation.latitude=41.56333" title="Search Plazi for locations around (long -71.87722/lat 41.56333)">Sheldon Road</a> ”, 41.56333 -71.87722, 6–20 July 2016, coll. R . Durgy, 1 ♀, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00075524 ; 23 July–7 August 2012, coll. R . Durgy, 1 ♀, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00075525 ; see also Zarrillo et al. (2016) .</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF505D5DFE02FB66	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF505AB8FD59F983.text	1458879AFFB6FFCDFF505AB8FD59F983.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes clematidis Robertson 1897	<div><p>Sphecodes clematidis Robertson, 1897 ( dichrous group)</p><p>Clematis Blood Bee</p><p>Notes: This species is reported for Connecticut in Mitchell (1960) and is likely under-recorded due to identification challenges with its congener Sphecodes prosphorus Lovell and Cockerell ( Veit et al. 2022[“2021”]). There are six putative specimens of this species collected in 1968 in Litchfield County in Connecticut that are deposited at UCFC, identified by S. M. Fullerton, and two additional female specimens that were bowl trapped in a sandy location at the CAES research station in Griswold ( New London County) between 10–24 June 2015, tentatively identified by T. A. Zarrillo and M.F. Veit .</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF505AB8FD59F983	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF50581BFE0AF8B2.text	1458879AFFB6FFCDFF50581BFE0AF8B2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes confertus Say 1837	<div><p>Sphecodes confertus Say, 1837 ( confertus group)</p><p>Groove-faced Blood Bee</p><p>Notes: Sphecodes confertus is a rather distinctive and fairly numerous species, best known from sandplain remnants in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF50581BFE0AF8B2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB6FFCDFF505965FDF1F840.text	1458879AFFB6FFCDFF505965FDF1F840.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes coronus Mitchell 1956	<div><p>Sphecodes coronus Mitchell, 1956 ( mandibularis group)</p><p>Crowned Blood Bee</p><p>Notes: Sphecodes coronus is poorly understood historically, but now believed to be one of the more common small-bodied Sphecodes in the region. In Connecticut it has been found in sandplain remnants, a coastal preserve, agricultural land, and powerline ROW.</p></div>	https://treatment.plazi.org/id/1458879AFFB6FFCDFF505965FDF1F840	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505ED5FB08FEFD.text	1458879AFFB7FFCCFF505ED5FB08FEFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes cressonii (Robertson 1903) H	<div><p>Sphecodes cressonii (Robertson, 1903) ( mandibularis group)</p><p>Cresson’s Blood Bee</p><p>Notes: Females of this species are hard to identify, and historical records may need to be restudied. Habitat associations in Connecticut include agricultural land, a coastal scrub, and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505ED5FB08FEFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505F25FC55FD81.text	1458879AFFB7FFCCFF505F25FC55FD81.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes davisii Robertson 1897	<div><p>Sphecodes davisii Robertson, 1897 ( mandibularis group)</p><p>Davis’s Blood Bee</p><p>Notes: This parasite of Agapostemon species is often found on goldenrod in the fall. The female was widely reported as Sphecodes persimilis prior to recent documentation of synonymies (Gibbs et al. 2017a). Best known from sandplain remnants and sparsely vegetated sandy areas in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505F25FC55FD81	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505C19FE7EFC95.text	1458879AFFB7FFCCFF505C19FE7EFC95.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes dichrous Smith 1853	<div><p>Sphecodes dichrous Smith, 1853 ( dichrous group)</p><p>Bicolored Blood Bee</p><p>Notes: Sphecode dichrous is a rather widespread and notably large species. In Connecticut it has been collected in habitats such as powerline ROW, a quarry top, grasslands, sandplain remnants, and a meadow at the edge of a deciduous forest.</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505C19FE7EFC95	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505D0DFB9BFB73.text	1458879AFFB7FFCCFF505D0DFB9BFB73.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes fattigi Mitchell 1956	<div><p>Sphecodes fattigi Mitchell, 1956 ( mandibularis group)</p><p>Fattig’s Blood Bee</p><p>Notes: This species was overlooked by historical workers but is now known from several states in the region (Veit et al. 2022[“2021”]). Collection locations in Connecticut include a wildlife management area in Vernon (Tolland County) and the White Memorial Conservation Center in Litchfield (Litchfield County).</p><p>Material examined. Litchfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.21095&amp;materialsCitation.latitude=41.72053" title="Search Plazi for locations around (long -73.21095/lat 41.72053)">Litchfield</a>: 41.72053 -73.21095, 9–23 September 2014, coll. J. Fischer, 1 ♀, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00075523 ; Tolland Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.47722&amp;materialsCitation.latitude=41.82667" title="Search Plazi for locations around (long -72.47722/lat 41.82667)">Vernon</a>: “Tankerhoosen WMA”, 41.82667 -72.47722, 23 May 2012, coll. F. Morrison, 3 ♀, UCMS, det. J.S. Ascher 2013, UCMS _ ENT 00055459, UCMS _ ENT 00055460, UCMS _ ENT 00055461 .</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505D0DFB9BFB73	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505AA4FC45FA22.text	1458879AFFB7FFCCFF505AA4FC45FA22.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes galerus Lovell and Cockerell 1907	<div><p>Sphecodes galerus Lovell and Cockerell, 1907 ( mandibularis group)</p><p>Helmeted Blood Bee</p><p>Notes: Mitchell (1960) reported this species for Connecticut, but we have not been able to trace any details and its status and distribution requires clarification (Veit et al. 2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505AA4FC45FA22	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF505BF4FEECF90A.text	1458879AFFB7FFCCFF505BF4FEECF90A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes heraclei subsp. heraclei Robertson 1897	<div><p>Sphecodes heraclei heraclei Robertson, 1897 ( dichrous group)</p><p>Knob-crowned Blood Bee</p><p>Notes: This is a distinctive species due to the large knob on its vertex. It is widespread in the Northeastern United States, excluding far northern sites, but not especially common. In Connecticut Sphecodes heraclei heraclei has been found in powerline ROW, a coastal wildlife refuge, agricultural land, and a meadow at the edge of a deciduous forest.</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF505BF4FEECF90A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB7FFCCFF50588CFE35F872.text	1458879AFFB7FFCCFF50588CFE35F872.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes hydrangeae Mitchell 1956	<div><p>Sphecodes hydrangeae Mitchell, 1956 ( dichrous group)</p><p>Hydrangea Blood Bee</p><p>Notes: Two male paratypes collected by W. M. Wheeler in Colebrook (Litchfield County) on 3 August 1919 and 5 September 1919 are described in Mitchell (1956) and are deposited at MCZ (MCZ: Ent:30467). There are few reports of this rare taxon by subsequent workers, although a male was recently reported in Minnesota ( Portman et al. 2023) .</p></div>	https://treatment.plazi.org/id/1458879AFFB7FFCCFF50588CFE35F872	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF505ED5FF43FED1.text	1458879AFFB4FFCFFF505ED5FF43FED1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes illinoensis (Robertson 1903) H	<div><p>Sphecodes illinoensis (Robertson, 1903) ( mandibularis group)</p><p>Illinois Blood Bee</p><p>Notes: This is a regularly found but rather localized species, with most Connecticut specimens collected on the sandy grounds at the CAES research stations in Windsor (n = 30, 50% of total) and Griswold (n = 27, 45% of total).</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF505ED5FF43FED1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF505FC9FB2CFD12.text	1458879AFFB4FFCFFF505FC9FB2CFD12.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes johnsonii Lovell 1909	<div><p>Sphecodes johnsonii Lovell, 1909 ( mandibularis group)</p><p>Johnson’s Blood Bee</p><p>Notes: S phecodes johnsonii was described from Fall River, Massachusetts and is relatively well known in New York State, from which the male was recently described (Ascher et al. 2014). It occurs in New England but also occurs widely in Maritime Canada and Quebec, as well as locally in the Mid-Atlantic and Midwestern states (including Michigan, Gibbs et al. 2 017a). Collection locations for this species in Connecticut include powerline ROW, agricultural land, the edge of a pond, and an urban pollinator planting near the coast.</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF505FC9FB2CFD12	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF505C84FB97FC27.text	1458879AFFB4FFCFFF505C84FB97FC27.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes levis Lovell and Cockerell 1907	<div><p>Sphecodes levis Lovell and Cockerell, 1907 ( mandibularis group)</p><p>Light-bodied Blood Bee</p><p>Notes: This is a scarce species with a northern distribution that is similar to S. townesi (Giles &amp; Ascher 2006) . In Connecticut it has been collected in powerline ROW in northern New London County and in various locations in the northwest corner of the state, including near the edge of a swamp .</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF505C84FB97FC27	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF505DF8FE2EFB2B.text	1458879AFFB4FFCFFF505DF8FE2EFB2B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes mandibularis Cresson 1872	<div><p>Sphecodes mandibularis Cresson, 1872 ( mandibularis group)</p><p>Stygian Blood Bee</p><p>Notes: Although there are few records for Sphecodes mandibularis in Connecticut (n = 13), it has been found in a variety of habitats, including inland dunes, a quarry ridge, grasslands, agricultural land, powerline ROW, and a coastal preserve.</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF505DF8FE2EFB2B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF505AECFDC8F9F5.text	1458879AFFB4FFCFFF505AECFDC8F9F5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes minor Robertson 1898	<div><p>Sphecodes minor Robertson, 1898 ( dichrous group)</p><p>Lesser Blood Bee</p><p>Notes: This species is not well known in Connecticut; however historical material has been vetted, including a specimen collected in Stafford (Tolland County) by W. E. Britton in 1905.</p><p>Material examined. Hartford Co.: Manchester: 4 August 1933, coll. unknown, 1 ♂, CAES, det. S. Droege 2008 and re-examined by T. A. Zarrillo 2022, UCMS _ ENT 00029085; <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.745&amp;materialsCitation.latitude=42.0119" title="Search Plazi for locations around (long -72.745/lat 42.0119)">Suffield</a>: “West Suffield”, 42.0119 -72.745 , 18–19 June 2009, coll. S. Deford, 1 ♂, UNHP, det. J.S. Ascher, bee bowl, UCMS _ ENT 00038923; 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00038924; New Haven Co.: New Haven: 4 July 1942, coll. “J.C.S.”, 1 ♀, CAES, J.S. Ascher 2008, UCMS _ ENT 00027859; Tolland Co.: Stafford: 24 August 1905, coll. W.E. Britton, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00027858 .</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF505AECFDC8F9F5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCFFF50582EFE16F978.text	1458879AFFB4FFCFFF50582EFE16F978.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes nigricorpus Mitchell 1956	<div><p>Sphecodes nigricorpus Mitchell, 1956 ( mandibularis group)</p><p>Black-bodied Blood Bee</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCFFF50582EFE16F978	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB4FFCEFF5058A3FC23FF6F.text	1458879AFFB4FFCEFF5058A3FC23FF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes nigricorpus Mitchell 1956	<div><p>Sphecodes nigricorpus Mitchell, 1956: 220 (Connecticut holotype).</p><p>Holotype. Male USA: Connecticut: Litchfield Co.: Colebrook, 3 August 1922, W.M. Wheeler (MCZ).</p><p>Notes: The holotype for this species lacks appressed tomentum on the face, with facial hairs simple and erect, and with overall scant pubescence and weak punctation, resembling the female of S. smilacinae (M. Arduser pers. comm.). Interestingly, Gibbs et al. (2023) also suggest male S. nigricorpus may be associated with the female of S. smilacinae . Sphecodes nigricorpus was recently discovered in Michigan in 2021 during a survey of bees in</p><p>Lakeplain Prairie and Prairie Fen natural communities by Rowe et al. (2022), and in Minnesota at Two Rivers Aspen Parkland Scientific and Natural Areas in 2021 (Portman et al. 2023).</p></div>	https://treatment.plazi.org/id/1458879AFFB4FFCEFF5058A3FC23FF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505ABBFDEAFA3E.text	1458879AFFB5FFCEFF505ABBFDEAFA3E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Rophitinae	<div><p>Rophitinae</p><p>Genus Dufourea Lepeletier</p><p>Reference: Dumesh &amp; Sheffield (2012)</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505ABBFDEAFA3E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505BE0FE1EF8BD.text	1458879AFFB5FFCEFF505BE0FE1EF8BD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dufourea monardae (Viereck 1924) L	<div><p>Dufourea monardae (Viereck, 1924)</p><p>Bee Balm Shortface</p><p>Notes: This species was historically unknown from Connecticut until its detection in Litchfield County by C. T. Maier in 2009. This species is now known to occur at six locations within the towns of Canaan, North Canaan, and Salisbury (Litchfield County). Females of this species have been collected in Connecticut on its preferred host plant, wild bergamot ( Monarda fistulosa), and also spotted knapweed ( Centaurea stoebe), while males have been collected while patrolling catnip ( Nepetia cataria) and wild bergamot. This species has been found on roadside stands of its host plant, along field edges, in a pollinator meadow planting on school grounds, and a powerline ROW near a limestone quarry.</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505BE0FE1EF8BD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505EB0FB1BFE51.text	1458879AFFB5FFCEFF505EB0FB1BFE51.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes pimpinellae Robertson 1900	<div><p>Sphecodes pimpinellae Robertson, 1900 ( mandibularis group)</p><p>Anise Blood Bee</p><p>Notes: The first records we could trace for this species in Connecticut were reported in Mitchell (1956) as Sphecodes wheeleri Mitchell, a taxon recognized by M. Arduser as the associated male (synonymy formalized by Gibbs et al. 2017a). The seven available specimens, all collected by W. M. Wheeler in Colebrook (Litchfield County) from 1919 to 1922, are deposited at MCZ, including a paratype (MCZ:Ent:30462) ,.</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505EB0FB1BFE51	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505C49FEACFD00.text	1458879AFFB5FFCEFF505C49FEACFD00.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes prosphorus Lovell and Cockerell 1907	<div><p>Sphecodes prosphorus Lovell and Cockerell, 1907 ( dichrous group)</p><p>New England Blood Bee</p><p>Notes: This species was reported for Connecticut in Mitchell (1960), but we have not been able to trace any details.</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505C49FEACFD00	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505C9AFC1AFC33.text	1458879AFFB5FFCEFF505C9AFC1AFC33.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes ranunculi Robertson 1897	<div><p>Sphecodes ranunculi Robertson, 1897 ( ranunculi group)</p><p>Buttercup Blood Bee</p><p>Notes: This is a rather common, distinctively slender bee, expected both at northern sites and also more southern ones where it can occur together with the similar S. aroniae .</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505C9AFC1AFC33	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFCEFF505DEBFE12FB60.text	1458879AFFB5FFCEFF505DEBFE12FB60.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Sphecodes townesi Mitchell 1956	<div><p>Sphecodes townesi Mitchell, 1956 ( mandibularis group)</p><p>Townes’ Blood Bee</p><p>Notes: This species is likely under-recorded due to its similarity to Sphecodes levis Lovell and Cockerell. There are two additional specimen records from Litchfield County that we accept but were unable to confirm ourselves.</p><p>Material examined. Windham Co.: Ashford: 18 June 1936, coll. N. Turner, CAES, det. J.S. Ascher 2008,</p><p>UCMS _ENT 00030532.</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFCEFF505DEBFE12FB60	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB5FFC1FF505966FEC7FF0A.text	1458879AFFB5FFC1FF505966FEC7FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dufourea novaeangliae (Robertson 1897) H	<div><p>Dufourea novaeangliae (Robertson, 1897)</p><p>Pickerelweed Shortface</p><p>Notes: This species has been collected from its host plant pickerelweed ( Pontedaria cordata) in Connecticut. Habitat associations in Connecticut include a sphagnum bog, inland lake shores, and the edge of a sandplain remnant adjacent to the Farmington River .</p><p>MEGACHILIDAE</p></div>	https://treatment.plazi.org/id/1458879AFFB5FFC1FF505966FEC7FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBAFFC1FF505E93FD9BFE75.text	1458879AFFBAFFC1FF505E93FD9BFE75.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachilinae	<div><p>Megachilinae</p><p>Anthidiiini</p><p>Genus Anthidiellum Cockerell</p><p>Reference: Urban (2001)</p><p>Subgenus Loyolanthidium Urban</p></div>	https://treatment.plazi.org/id/1458879AFFBAFFC1FF505E93FD9BFE75	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBAFFC1FF505FADFDBCFC29.text	1458879AFFBAFFC1FF505FADFDBCFC29.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthidiellum (Loyolanthidium) notatum subsp. notatum (Latreille 1809) H	<div><p>Anthidiellum (Loyolanthidium) notatum notatum (Latreille, 1809)</p><p>Northern Rotund-Resin Bee</p><p>Notes: This relatively scarce native bee is quite localized this far north. Historically it has been found in New Haven (New Haven County) as early as 1905, with later records (&gt;2000) coming from habitats such as sandplain remnants, forests, powerline ROW, and wildlife management areas. Portman et al. (2023) recently raised Anthidiellum notatum boreale to species.</p><p>Genus Anthidium Fabricius</p><p>Reference: Gonzalez &amp; Griswold (2013); Litman et al. (2016); Warncke (1980)</p><p>Subgenus Anthidium Fabricius</p></div>	https://treatment.plazi.org/id/1458879AFFBAFFC1FF505FADFDBCFC29	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBAFFC1FF505DF1FD58FB75.text	1458879AFFBAFFC1FF505DF1FD58FB75.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthidium (Anthidium) manicatum subsp. manicatum (Linnaeus 1758) E F	<div><p>Anthidium (Anthidium) manicatum manicatum (Linnaeus, 1758)</p><p>European Woolcarder</p><p>Notes: This adventive bee was first discovered in the United States in Central New York State in 1963 (Jaycox 1967). The first known record for this species in Connecticut was captured by J. S. Ascher on 7 September 2002 in Fairfield County. Maier (2005) subsequently detected this species again by chance in 2004 in the coastal town of East Lyme, New London County, near the junction of State Route 156 and Liberty Way. It has since been found in every county within the state (Maier 2009) .</p></div>	https://treatment.plazi.org/id/1458879AFFBAFFC1FF505DF1FD58FB75	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBAFFC1FF505AADFDA4F929.text	1458879AFFBAFFC1FF505AADFDA4F929.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Anthidium (Proanthidium) oblongatum subsp. oblongatum (Illiger 1806) E F	<div><p>Anthidium (Proanthidium) oblongatum oblongatum (Illiger, 1806)</p><p>Oblong Woolcarder</p><p>Notes: This bee is a relatively recent addition to the exotic bee fauna of the United States and now very widespread across eastern North America and beyond. The first known Connecticut record is from New Haven County, collected in a malaise trap in a grassy strip between an apple orchard and an old field with trees and shrubs on 16 August 1996 by C. T. Maier .</p><p>Genus Dianthidium Cockerell</p><p>Reference: Litman et al. (2016); Mitchell (1962)</p><p>Subgenus Dianthidium Cockerell</p></div>	https://treatment.plazi.org/id/1458879AFFBAFFC1FF505AADFDA4F929	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBAFFC0FF5058F1FD4CFF50.text	1458879AFFBAFFC0FF5058F1FD4CFF50.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dianthidium (Dianthidium) simile (Cresson 1864)	<div><p>Dianthidium (Dianthidium) simile (Cresson, 1864)</p><p>Northeastern Pebble Bee</p><p>Notes: This bee species was reported from Connecticut as Anthidium simile in Cresson (1864a) with no additional information. It is a rarely recorded bee, especially in New England where records are widely scattered. Community science records from iNaturalist show that this species persists south along the Maine Coast to at least Cape Elizabeth in Cumberland County (https://www.inaturalist.org/observations?place_id=52339&amp;subview=map &amp;taxon_id=452980), but there are no recent records from Massachusetts (Veit et al. 2022[“2021”]) or elsewhere in Southern New England (or New York) and the species should be considered of great conservation interest.</p><p>Genus Pseudoanthidium Friese</p><p>Reference: Litman et al. (2016); Portman et al. (2019)</p></div>	https://treatment.plazi.org/id/1458879AFFBAFFC0FF5058F1FD4CFF50	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBBFFC0FF505F4BFD3AFCA0.text	1458879AFFBBFFC0FF505F4BFD3AFCA0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pseudoanthidium nanum (Mocsary 1880) E F	<div><p>Pseudoanthidium nanum (Mocsáry, 1880[“1881”])</p><p>European Small-Woolcarder</p><p>Notes: The presence of this European bee in Connecticut has been documented in three counties by six photo observations on iNaturalist, all urban locations (https://www.inaturalist.org/observations?place_id=49&amp;taxon_ id=499394). This exotic species (see Figure 2, A) has also been recently detected for the first time in Rhode Island on iNaturalist in 2021 (https://www.inaturalist.org/observations/91111117). Pseudoanthidium nanum is easily identified from photos in its exotic range, as its black tegula differentiates it from other visually similar Anthidiini in the Northeastern United States, especially Anthidium oblongatum . Thus, digital community science portals are a valuable tool for tracking how this species is spreading in the region.</p><p>Genus Stelis Panzer</p><p>Reference: Mitchell (1962); Parker &amp; Bohart (1979)</p><p>Subgenus Dolichostelis Parker &amp; Bohart</p></div>	https://treatment.plazi.org/id/1458879AFFBBFFC0FF505F4BFD3AFCA0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBBFFC0FF595D7BFE09FBFD.text	1458879AFFBBFFC0FF595D7BFE09FBFD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Stelis (Dolichostelis) louisae Cockerell 1911	<div><p>Stelis (Dolichostelis) louisae Cockerell, 1911</p><p>Louisiana Painted-Dark Bee</p><p>Notes: This highly recognizable cleptoparasitic species has 37 photo observations from Connecticut on iNaturalist (https://www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=313243), whereas only six physical specimens have been located and examined.</p><p>Subgenus Stelis Panzer</p></div>	https://treatment.plazi.org/id/1458879AFFBBFFC0FF595D7BFE09FBFD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBBFFC0FF595A25FEB4FA06.text	1458879AFFBBFFC0FF595A25FEB4FA06.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Stelis (Stelis) coarctatus Crawford 1916	<div><p>Stelis (Stelis) coarctatus Crawford, 1916</p><p>Compressed Dark Bee</p><p>Notes: A female was captured in a bee bowl near a pollinator garden at Beaver Pond Park in New Haven (New Haven County). Its host, Heriades carinata (Matthews 1965, Sheffield et al. 2008), is widespread across the state.</p><p>Material examined. New Haven Co.: New Haven: “Beaver Pond Park”, 41.32659 -72.9384, 15–27 June 1018, coll. J. Kerr, 1 ♀, CAES, det. S. Droege and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00082140 .</p></div>	https://treatment.plazi.org/id/1458879AFFBBFFC0FF595A25FEB4FA06	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBBFFC0FF595B98FE12F953.text	1458879AFFBBFFC0FF595B98FE12F953.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Stelis (Stelis) foederalis Smith 1854	<div><p>Stelis (Stelis) foederalis Smith, 1854</p><p>Federal Dark Bee</p><p>Notes: This uncommon cleptoparasite is known in Connecticut from a single male. Two of its reported hosts,</p><p>Osmia atriventris (Hurd 1979) and Hoplitis spoliata (Fye 1965, Medler 1967), are found widely in Connecticut.</p><p>Material examined. Tolland Co.: Mansfield: coll. W.B. Roberts, 1 ♂, UCMS, det. J.S. Ascher 2008,</p><p>UCMS _ENT 00032346.</p></div>	https://treatment.plazi.org/id/1458879AFFBBFFC0FF595B98FE12F953	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBBFFC0FF50594BFE5FF864.text	1458879AFFBBFFC0FF50594BFE5FF864.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Stelis (Stelis) labiata (Provancher 1888)	<div><p>Stelis (Stelis) labiata (Provancher, 1888)</p><p>Labiate Dark Bee</p><p>Notes: Mitchell (1962) reported this species from Connecticut; however, we have not been able to locate the voucher for this record. This species has recently been documented in Massachusetts in pine barrens and a sand pit (Veit et al. 2022[“2021”]).</p></div>	https://treatment.plazi.org/id/1458879AFFBBFFC0FF50594BFE5FF864	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB8FFC3FF505C89FDE1F983.text	1458879AFFB8FFC3FF505C89FDE1F983.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Allocoelioxys) coturnix Perez 1884	<div><p>Coelioxys (Allocoelioxys) coturnix Pérez, 1884 [“1883”]</p><p>Red-tipped Sharptail</p><p>Notes: This species was first discovered in the New World based on specimens collected in Olney, Montgomery County Maryland, by J. S. Ascher in 2004 and identified with reference to material in the AMNH confirmed by Palearctic Coelioxys expert Maximilian Schwarz. Subgenus Allocoelioxys can be recognized by characters described by Michener (2007). The male T6 has eight teeth (two lateral, six apical) whereas other Holarctic subgenera have only six teeth (two lateral, four apical). Females have a transverse subocular carina extending posteriorly from posterior mandibular and joining the preoccipital carina whereas such a carina is absent or ending free in most other Holarctic Coelioxys (for exceptions see Michener 2007). In hand both sexes are notably smaller than most native Coelioxys . In images a variably reddened (not black) apical tergum (T6) is often useful for identification of C. coturnix . The apical tergum (T6) and sternum (S6) of female C. coturnix are less attenuate than in many native Coelioxys and lacks the specialized hairs fringing S 6 in subgenus Cyrtocoelioxys (which is small-bodied and has a relatively nonattenuate metasomal apex). The precise pattern of white hair patches can also be helpful in recognizing C. coturnix, with notably conspicuous separated pairs of bright white hair patches present at the anterior of the scutum and on the scutellum (as posteriorly-directed triangles) whereas in many other Coelioxys hairs may be tan (not bright white) and arrayed more transversely and more continuously, e.g., forming a more or less complete transverse band along the scuto-scutello suture. This is the only known example of an adventive cleptoparasite becoming established on a different continent. A female of this species was first detected in Connecticut by F. Morrison on 15 July 2017 at Wesleyan University in the town of Middletown (Middlesex County) while nectaring in a small patch of Coreopsis sp. It has also been found in West Hartford (Hartford County), documented by photos taken by D. Cappaert on 25 August 2020 posted to iNaturalist (https://www.inaturalist.org/observations/57564258) (see also Figure 2, B).</p><p>Material examined. Middlesex Co.: Middletown: 15 July 2017, coll. F. Morrison, 1 ♀, personal collection, det. F. Morrison, netted from Coreopsis .</p></div>	https://treatment.plazi.org/id/1458879AFFB8FFC3FF505C89FDE1F983	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB8FFC3FF59581BFED4F911.text	1458879AFFB8FFC3FF59581BFED4F911.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Boreocoelioxys) moestus Cresson 1864	<div><p>Coelioxys (Boreocoelioxys) moestus Cresson, 1864</p><p>Mournful Sharptail</p></div>	https://treatment.plazi.org/id/1458879AFFB8FFC3FF59581BFED4F911	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB8FFC3FF505889FE54F841.text	1458879AFFB8FFC3FF505889FE54F841.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys Latreille 1809	<div><p>Coelioxys moesta Cresson, 1864: 403 (Connecticut holotype) .</p><p>Holotype. Female USA: Connecticut: (ANSP).</p><p>Notes: There are two known records for this species in Connecticut, the holotype (Cresson 1864a), and a female collected in a pollinator meadow at the Pond Lily Nature Preserve in New Haven (New Haven County).</p><p>Material examined. New Haven Co.: New Haven: “Pond Lily Preserve”, 41.33608 -72.97573, 25 September–2 October 2018, coll. J. Durrell, 1 ♀, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, bee bowl, UCMS _ ENT 00082131 .</p></div>	https://treatment.plazi.org/id/1458879AFFB8FFC3FF505889FE54F841	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB8FFC3FF595FA5FE4DFD16.text	1458879AFFB8FFC3FF595FA5FE4DFD16.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachilini	<div><p>Megachilini</p><p>Genus Coelioxys Latreille</p><p>Reference: Baker (1975); Le Divelec &amp; Dufrêne (2020)</p><p>Subgenus Allocoelioxys Tkalc</p></div>	https://treatment.plazi.org/id/1458879AFFB8FFC3FF595FA5FE4DFD16	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB8FFC3FF505ED5FB4FFE7D.text	1458879AFFB8FFC3FF505ED5FB4FFE7D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Stelis (Stelis) lateralis Cresson 1864	<div><p>Stelis (Stelis) lateralis Cresson, 1864</p><p>Spot-sided Dark Bee</p><p>Notes: This species is only known from five records in Connecticut, two of which were found in a powerline</p><p>ROW (Wagner et al. 2019) and another in a grassland by an airport.</p><p>Material examined. Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.1762&amp;materialsCitation.latitude=41.7487" title="Search Plazi for locations around (long -72.1762/lat 41.7487)">Hartland</a>: “ 1 mi S of West Hartland ”, 6 June 1966, coll. S.M. Fullerton, 1 ♂, UCMS, det. J.S. Ascher 2008, UCMS _ ENT 00032208; Windsor: “Windham Airport”, 41.7487 -72.1762, 7 July 2023, coll. H. Baranowski, 1 ♀, UCMS, det. M.F. Veit and re-examined by T. A. Zarrillo 2023 .</p></div>	https://treatment.plazi.org/id/1458879AFFB8FFC3FF505ED5FB4FFE7D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC2FF505ED5FE04FE35.text	1458879AFFB9FFC2FF505ED5FE04FE35.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Boreocoelioxys) octodentatus Say 1824	<div><p>Coelioxys (Boreocoelioxys) octodentatus Say, 1824</p><p>Eight-toothed Sharptail</p><p>Notes: This cleptoparasitic species is found throughout Connecticut, as are some of its hosts, Megachile mendica Cresson and Megachile rotundata (Fabricius). The type series of C. brevis Cresson (preoccupied) included Connecticut material but a specimen of C. altilis (a replacement name) from Pennsylvania was chosen as the lectotype (Cresson, 1916).</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC2FF505ED5FE04FE35	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC2FF505FEDFC25FC84.text	1458879AFFB9FFC2FF505FEDFC25FC84.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Boreocoelioxys) porterae Cockerell 1900	<div><p>Coelioxys (Boreocoelioxys) porterae Cockerell, 1900</p><p>Porter’s Sharptail</p><p>= Coelioxys dubitata var. melanopoda Viereck, 1917: 747 (Connecticut holotype).</p><p>Holotype. Male USA: Connecticut: New Haven Co.: New Haven, 17 June 1905, (USNM).</p><p>Notes: The first known record from Connecticut was a male collected by H. L. Viereck from red raspberry ( Rubus strigosus) on 17 June 1905 (USNM ENT 00536891), reported as a “new variety” in Viereck et al. (1916). Coelioxys porterae was rediscovered in the state 102 years later at the Adder Reservoir in Middletown (Middlesex County) by D. L. Wagner, with subsequent detections in five towns (Middlesex County: Westbrook; New Haven County: North Branford, Guilford; New London County: Montville).</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC2FF505FEDFC25FC84	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC2FF505D1EFD74FBB4.text	1458879AFFB9FFC2FF505D1EFD74FBB4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Boreocoelioxys) rufitarsis Smith 1854	<div><p>Coelioxys (Boreocoelioxys) rufitarsis Smith, 1854</p><p>Red-footed Sharptail</p><p>Notes: This northern species is known to parasitize soil-nesting species of Megachile (Xanthosarus) and has been found in powerline ROW in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC2FF505D1EFD74FBB4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC2FF505A6EFE55FA81.text	1458879AFFB9FFC2FF505A6EFE55FA81.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Boreocoelioxys) sayi Robertson 1897	<div><p>Coelioxys (Boreocoelioxys) sayi Robertson, 1897</p><p>Say’s Sharptail</p><p>Notes: This species has a more southern distribution and occurs widely in the Eastern United States. In Connecticut it has been found in meadows, a coastal wildlife refuge, forests, powerline ROW, agricultural land, sandplain remnants, and urban parks.</p><p>Subgenus Coelioxys Latreille</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC2FF505A6EFE55FA81	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC2FF505B19FD9DF97C.text	1458879AFFB9FFC2FF505B19FD9DF97C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Coelioxys) sodalis Cresson 1878	<div><p>Coelioxys (Coelioxys) sodalis Cresson, 1878</p><p>Complicit Sharptail</p><p>Notes: This is a northern species and thus is expected to occur only locally in Connecticut.</p><p>Material examined. Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.54611&amp;materialsCitation.latitude=41.51277" title="Search Plazi for locations around (long -72.54611/lat 41.51277)">East Hartford</a>: 4148.52 -7240.87, 3 June 2016, coll. M.F. Veit, 1 ♀, personal collection, det. M.F. Veit, netted at <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.54611&amp;materialsCitation.latitude=41.51277" title="Search Plazi for locations around (long -72.54611/lat 41.51277)">BioBlitz</a>; Middlesex Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.54611&amp;materialsCitation.latitude=41.51277" title="Search Plazi for locations around (long -72.54611/lat 41.51277)">East Hampton</a>: “ Hurd State Park, 41.51277 -72.54611, 16–21 May 2007, coll. D.L. Wagner et al., 1 ♀, UCMS , det. J.S. Ascher 2008, bee bowl, UCMS _ ENT 00026273 .</p><p>Subgenus Cyrtocoelioxys Mitchell</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC2FF505B19FD9DF97C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFB9FFC5FF5058A6FDA4FF0A.text	1458879AFFB9FFC5FF5058A6FDA4FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Cyrtocoelioxys) modestus Smith 1854	<div><p>Coelioxys (Cyrtocoelioxys) modestus Smith, 1854</p><p>Modest Sharptail</p><p>Notes: This widely distributed cleptoparasite is usually found in small numbers where it occurs. It has been found in every Connecticut county except Middlesex, usually near rivers and locations with sand and/or gravel.</p><p>Subgenus Paracoelioxys Gribodo</p></div>	https://treatment.plazi.org/id/1458879AFFB9FFC5FF5058A6FDA4FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBEFFC5FF505E8CFD9BFD1D.text	1458879AFFBEFFC5FF505E8CFD9BFD1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Paracoelioxys) funerarius Smith 1854	<div><p>Coelioxys (Paracoelioxys) funerarius Smith, 1854</p><p>Funereal Sharptail</p><p>Notes: Although this northern species was known historically from New York and New England we are not aware of any recent records from the region (Veit et al. 2022[“2021”]) and it may be extirpated. This species is much better known recently from Canada, the mountains of the Western United States, and Minnesota (Portman et al. 2023).</p><p>Material examined. Fairfield Co.: Wilton: 7 August 1931, coll. B. W. McFarland, 1 ♂, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028245; Middlesex Co.: Middletown: 1 August 1933, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028246; New Haven Co.: Waterbury: 31 August 1932, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00028247 .</p><p>Subgenus Synocoelioxys Mitchell</p></div>	https://treatment.plazi.org/id/1458879AFFBEFFC5FF505E8CFD9BFD1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBEFFC5FF505C85FCE1FBA6.text	1458879AFFBEFFC5FF505C85FCE1FBA6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Synocoelioxys) alternatus Say 1937	<div><p>Coelioxys (Synocoelioxys) alternatus Say, 1937</p><p>Sunflower Sharptail</p><p>Notes: This cleptoparasite of Megachile pugnata can usually be found with its host on sunflowers (J. S. Ascher pers. obs.). Only a singleton is known from Connecticut, collected during a study of pollinator plantings on diversified farms.</p><p>Material examined. Middlesex Co.: Middletown: “Yellow House Farm, 216 Arbutus Street ”, 41.52738 -72.64864, 4 August 2017, coll. D. Chenoweth. 1 ♂, CAES, det. M.F. Veit and re-examined by T. A. Zarrillo 2022, netted from Vernonia noveboracensis, UCMS _ENT 00082133 .</p></div>	https://treatment.plazi.org/id/1458879AFFBEFFC5FF505C85FCE1FBA6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBEFFC5FF505A78FDA5FA71.text	1458879AFFBEFFC5FF505A78FDA5FA71.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Synocoelioxys) hunteri Crawford 1914	<div><p>Coelioxys (Synocoelioxys) hunteri Crawford, 1914</p><p>Hunter’s Sharptail</p><p>Notes: This southern species is likely a parasite of subgenus Sayapis other than M. pugnata, e.g. of M. inimica sayi and/or M. frugalis frugalis . Coelioxys hunteri is known in Connecticut only from a singleton caught near a river within the city of New Haven (New Haven County).</p><p>Material examined. New Haven Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.95457&amp;materialsCitation.latitude=41.30925" title="Search Plazi for locations around (long -72.95457/lat 41.30925)">New Haven</a>: “West River Memorial Park, near Nature Center ”, 41.30925 -72.95457, 20 July 2009, coll. C. T. Maier, 1 ♀, CAES, det. J.S. Ascher, netted from Verbena hastata, UCMS _ENT 00082075 .</p><p>Subgenus Xerocoelioxys Mitchell</p></div>	https://treatment.plazi.org/id/1458879AFFBEFFC5FF505A78FDA5FA71	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBEFFC4FF505BA9FE44FF0A.text	1458879AFFBEFFC4FF505BA9FE44FF0A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Coelioxys (Xerocoelioxys) immaculatus Cockerell 1912	<div><p>Coelioxys (Xerocoelioxys) immaculatus Cockerell, 1912</p><p>Immaculate Sharptail</p><p>Notes: This species has been collected in an inland sandplain remnant in Connecticut, a location where its host M. addenda (Cane et al. 1996) has also been collected.</p><p>Material examined. New London Co.: Salem: “ Salem Rt. 11 Extension”, 41.46166 -72.27138, 14 June 2012, coll. F. Morrison, 1 ♂, UCMS, det. J.S. Ascher, UCMS _ ENT 00049746; 29 May 2012, coll. F. Morrison, 1 ♂, UCMS, det. F. Morrison and re-examined by T. A. Zarrillo, UCMS _ ENT 00049747 .</p><p>Genus Megachile Latreille</p><p>Reference: Bzdyk (2012); Mitchell (1933, 1935a, 1935b 1936a, 1936b, 1937a, 1937b, 1937c, 1962); Parker (1978); Sheffield et al. (2011).</p><p>Subgenus Addendella Mitchell</p></div>	https://treatment.plazi.org/id/1458879AFFBEFFC4FF505BA9FE44FF0A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBFFFC4FF505E8CFDFBFE67.text	1458879AFFBFFFC4FF505E8CFDFBFE67.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Addendella) addenda Cresson 1878	<div><p>Megachile (Addendella) addenda Cresson, 1878</p><p>Cranberry Leafcutter</p><p>Notes: This species is a potentially important pollinator of cranberry, but managed populations can be subject to high rates of parasitism by C. immaculatus (Cane et al. 1996) . In Connecticut this species has been found in wildlife management areas, grasslands, and sandplain remnants.</p><p>Subgenus Callomegachile Michener</p></div>	https://treatment.plazi.org/id/1458879AFFBFFFC4FF505E8CFDFBFE67	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBFFFC4FF505FBFFDF1FD5D.text	1458879AFFBFFFC4FF505FBFFDF1FD5D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Callomegachile) sculpturalis Smith 1853	<div><p>Megachile (Callomegachile) sculpturalis Smith, 1853</p><p>Sculptured Resin Bee</p><p>Notes: This exotic species of Asian origin is now widespread regionally and well established in Connecticut</p><p>(Maier 2005).</p><p>Subgenus Chelostomoides Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFBFFFC4FF505FBFFDF1FD5D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBFFFC4FF505D45FD99FBAE.text	1458879AFFBFFFC4FF505D45FD99FBAE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Chelostomoides) campanulae (Robertson 1903) F	<div><p>Megachile (Chelostomoides) campanulae (Robertson, 1903)</p><p>Bellflower Resin Bee</p><p>Notes: This elongate-bodied native species is often found visiting Campanula . In Connecticut it has been found in habitats such as sandplain remnants, wildlife management areas, powerline ROW, quarries, and grasslands.</p><p>Subgenus Eutricharaea Thomson</p></div>	https://treatment.plazi.org/id/1458879AFFBFFFC4FF505D45FD99FBAE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBFFFC4FF505A70FAE4F8AC.text	1458879AFFBFFFC4FF505A70FAE4F8AC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	(Eutricharaea) apicalis Spinola 1808	<div><p>Megachilidae (Eutricharaea) apicalis Spinola, 1808</p><p>Apical Small-Leafcutter</p><p>Notes: A single female was captured on its non-native host plant, spotted knapweed ( Centaurea stoebe), by C. T. Maier on 22 August 2009 in North Haven (New Haven County) near a stand of deciduous trees adjacent to a railway line in a degraded industrial area. This species has also been detected in Michigan (Gibbs et al. 2017a) and Illinois (Gruver &amp; CaraDonna 2020) visiting C. stoebe in similar disturbed habitats near rail lines, and Gibbs et al. (2017a) and Gruver &amp; CaraDonna (2020) suggest non-native plants such as C. stoebe might be facilitating the spread of M. apicalis . This species is relatively well known in New York City (https://www.inaturalist.org/ observations?place_id=48&amp;subview=map&amp;taxon_id=335714) and New Jersey (https://www.inaturalist.org/ observations?place_id=51&amp;subview=map&amp;taxon_id=335714) but it has only recently been detected in New England including Massachusetts, with new state records in 2022 from Middlesex and Suffolk Counties (https:// www.inaturalist.org/observations?place_id=2&amp;taxon_id=335714). Megachile apicalis was likely first detected in the United States in Virginia in 1931 (Mitchell 1962) and has since been documented for Canada (Sheffield et al. 2011), British Columbia, Oregon, Washington, Montana (Kuhlman &amp; Burrows 2017), California (Cooper 1984), Pennsylvania (Donovall 2010), Ohio (Sivakoff et al. 2018), Illinois (Gruver &amp; CaraDonna 2020) and Missouri (Camilo et al. 2017). Future targeted surveys in urban, industrial, highly disturbed areas, especially along railway lines, in Connecticut and elsewhere are warranted to monitor the spread of this non-native species.</p><p>Material examined. New Haven Co.: North Haven:“ 0.28 km S jct.Sackett Point Road and Universal Drive”,</p><p>41.36506 -72.87088, 22 August 2009, coll. C. T . Maier, 1 ♀, CAES, det. J.S. Ascher, UCMS _ ENT 00082080 .</p></div>	https://treatment.plazi.org/id/1458879AFFBFFFC4FF505A70FAE4F8AC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBFFFC7FF505977FD9AFEEC.text	1458879AFFBFFFC7FF505977FD9AFEEC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Eutricharaea) rotundata (Baker 1975)	<div><p>Megachile (Eutricharaea) rotundata (Fabricius, 1787)</p><p>Alfalfa Leafcutter</p><p>Notes: This is a widespread species of Megachile (Eutricharaea), an exotic subgenus of Palearctic origin. It is often found visiting Fabaceae . Critical identifications should be made since the similar Megachile (Eutricharaea) pusilla Pérez, 1884 [“1883”] is well known from New York City and may appear in nearby southwestern Connecticut (or further afield). Megachile pusilla was until recently known in the United States as Megachile concinna (e.g., Parker 1978). It is evidently M. pusilla, not true M. concinna that has been redescribed from Japan (Soltani et al. 2017) and reported from Taiwan.</p><p>Subgenus Litomegachile Mitchell</p></div>	https://treatment.plazi.org/id/1458879AFFBFFFC7FF505977FD9AFEEC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC7FF505F36FE77FDF1.text	1458879AFFBCFFC7FF505F36FE77FDF1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Litomegachile) brevis Say 1837	<div><p>Megachile (Litomegachile) brevis Say, 1837</p><p>Short Leafcutter</p><p>Notes: This southern species has been found in all eight counties of Connecticut in habitats such as inland sandplain remnants, coastal dunes, grasslands, agricultural land, edge of a northern swamp, powerline ROW, and wildlife management areas.</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC7FF505F36FE77FDF1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC7FF505C2AFF76FCD9.text	1458879AFFBCFFC7FF505C2AFF76FCD9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Litomegachile) mendica Cresson 1878	<div><p>Megachile (Litomegachile) mendica Cresson, 1878</p><p>Flat-tailed Leafcutter</p><p>Notes: This is a very common species regionally and is often associated with composites and observed flying relatively late in the fall. In Connecticut this species has been found in habitats such as agricultural land, powerline ROW, grasslands, sandplain remnants, coastal dunes, forest edges, and a coastal wildlife management area.</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC7FF505C2AFF76FCD9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC7FF505DC2FE43FBD1.text	1458879AFFBCFFC7FF505DC2FE43FBD1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Litomegachile) texana Cresson 1878	<div><p>Megachile (Litomegachile) texana Cresson, 1878</p><p>Texas Leafcutter</p><p>Notes: Megachile texana is often found in urban areas and has a strong affinity for milkweed. In Connecticut this species has been found in sandplain remnants, powerline ROW, and agricultural land.</p><p>Subgenus Megachile Latreille</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC7FF505DC2FE43FBD1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC7FF505AC9FDC2FA1D.text	1458879AFFBCFFC7FF505AC9FDC2FA1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Megachile) centuncularis (Linnaeus 1758) E F	<div><p>Megachile (Megachile) centuncularis (Linnaeus, 1758)</p><p>Patchwork Leafcutter</p><p>Notes: The first known records of Megachile centuncularis in Connecticut were collected by H. L. Viereck and H. W. Winkley in August 1904. In Connecticut this species has been found in habitats such as a pollinator garden in an agricultural setting, a sandplain remnant, and urban areas. Due in part to lack of fully confirmed records from Alaska this species has been considered non-native by some regional experts (Veit et al. 2022[“2021”]; Gibbs et al. 2017a, considered it possibly exotic) .</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC7FF505AC9FDC2FA1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC7FF505B85FC2EF959.text	1458879AFFBCFFC7FF505B85FC2EF959.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Megachile) montivaga Cresson 1878	<div><p>Megachile (Megachile) montivaga Cresson, 1878</p><p>Silver-tailed Petalcutter</p><p>Notes: A reported status of “declining” in New Hamphsire (Matthiasson &amp; Rehan 2019) is inconsistent with widespread detection of this species from areas such as Tompkins County, New York where there are no or at most few historical collections available. If anything, this species seems to be increasing regionally. There are 23 records from Connecticut with years spanning 2003-2019, collected in habitats such as inland grasslands, edges of swamps, inland dunes, coastal preserves, meadows, and a gravel pit .</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC7FF505B85FC2EF959	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBCFFC6FF505941FE14FE88.text	1458879AFFBCFFC6FF505941FE14FE88.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Megachile) relativa Cresson 1878	<div><p>Megachile (Megachile) relativa Cresson, 1878</p><p>Golden-tailed Leafcutter</p><p>= Megachile (Xanthosarus) exclamans Viereck, 1916: 743 (Connecticut holotype).</p><p>Holotype. USA Female: Connecticut: Windham Co.: West Thompson, 12 July 1905, H. L. Viereck (USNM).</p><p>Notes: This common species was first recorded for Connecticut in Viereck et al. (1916) as the junior synonym M. exclamans Viereck. This species is known in Connecticut from habitats such as meadows near forest edges, quarry tops, edges of swamps, and powerline ROW.</p><p>Subgenus Sayapis Titus</p></div>	https://treatment.plazi.org/id/1458879AFFBCFFC6FF505941FE14FE88	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFFC6FF505F12FEC8FCAE.text	1458879AFFBDFFC6FF505F12FEC8FCAE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Sayapis) frugalis subsp. frugalis Cresson 1872	<div><p>Megachile (Sayapis) frugalis frugalis Cresson, 1872</p><p>Frugal Leafcutter.</p><p>Notes: This bee is generally scarce in the region, with scattered records, although it is showing up in new locations regionally on iNaturalist (https://www.inaturalist.org/observations?place_id=52339&amp;subview=map&amp;tax on_id=271776). There are two specimen records from Connecticut, as well as one photo record on iNaturalist (https://www.inaturalist.org/observations/173236137), all in New Haven County .</p><p>Material examined. New Haven Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.78777&amp;materialsCitation.latitude=41.405" title="Search Plazi for locations around (long -72.78777/lat 41.405)">North Branford</a>: “Cecarelli Farms, 186 Old Post Rd.”, 41.405 - 72.78777, 11 July 2016, coll. T. A. Zarrillo, 1 ♀, CAES, det. S. Droege 2013 and re-examined by T. A. Zarrillo 2022, UCMS _ ENT 00075431; West Haven: “Maltby Lake, Route 34 near Orange”, 25 June 1980, coll. L. Morgan- Thompson, 1 ♂, YPM, det. R. J. McGinley and re-examined by T. A. Zarrillo 2022, on flowers of Asclepias syriaca, YPM ENT 704658 .</p></div>	https://treatment.plazi.org/id/1458879AFFBDFFC6FF505F12FEC8FCAE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFFC6FF505D71FF47FB91.text	1458879AFFBDFFC6FF505D71FF47FB91.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Sayapis) inimica subsp. sayi Cresson 1872	<div><p>Megachile (Sayapis) inimica sayi Cresson, 1872</p><p>Hostile Leafcutter</p><p>Notes: This bee is widespread but not commonly collected in Connecticut, having only fourteen records but found in seven counties. It has been collected in places such as agricultural land, roadsides, at the edge of a large, denuded hilltop, and a quarry. This species is expected on composites other than sunflower at southern sites in New England.</p></div>	https://treatment.plazi.org/id/1458879AFFBDFFC6FF505D71FF47FB91	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFFC6FF505A09FD93FAC7.text	1458879AFFBDFFC6FF505A09FD93FAC7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Sayapis) pugnata subsp. pugnata Say 1837	<div><p>Megachile (Sayapis) pugnata pugnata Say, 1837</p><p>Pugnacious Leafcutter</p><p>Notes: There is an uptick in records for this readily identifiable bee in Connecticut due to the increasing number of photo observations (9 specimen records spanning 1933–2015; 15 confirmed iNaturalist photo observations spanning 2012–2023) (https://www.inaturalist.org/observations?place_id=49&amp;subview=table&amp;taxon_id=198850). This species is expected on sunflowers including at northern sites .</p><p>Subgenus Xanthosarus Robertson</p></div>	https://treatment.plazi.org/id/1458879AFFBDFFC6FF505A09FD93FAC7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFFC6FF505BD8FF6DF9CB.text	1458879AFFBDFFC6FF505BD8FF6DF9CB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Xanthosarus) frigida subsp. frigida Smith 1853	<div><p>Megachile (Xanthosarus) frigida frigida Smith, 1853</p><p>Frigid Leafcutter</p><p>Notes: This leafcutter has been in Connecticut on the grounds of a high school, near a reservoir, and in a pollinator planting. In New York City it was observed to excavate a nest burrow in a rotting log (J. S. Ascher pers. obs.) .</p></div>	https://treatment.plazi.org/id/1458879AFFBDFFC6FF505BD8FF6DF9CB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFFC6FF5058CCFB2CF8FB.text	1458879AFFBDFFC6FF5058CCFB2CF8FB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Xanthosarus) gemula subsp. gemula Cresson 1878	<div><p>Megachile (Xanthosarus) gemula gemula Cresson, 1878</p><p>Tan-cheeked Leafcutter</p><p>Notes: This northern leafcutter has been found throughout Connecticut in diverse habitats such as agricultural land, inland dunes, a coastal preserve, meadow near deciduous forest, and powerline ROW.</p></div>	https://treatment.plazi.org/id/1458879AFFBDFFC6FF5058CCFB2CF8FB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFFBDFF39FF50591CFB2CFF6F.text	1458879AFFBDFF39FF50591CFB2CFF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Xanthosarus) latimanus Say 1823	<div><p>Megachile (Xanthosarus) latimanus Say 1823</p><p>Broad-handed Leafcutter</p><p>Notes: This species regularly collects pollen of the Fabaceae and Asteraceae, and in Connecticut it has been found on agricultural land, sandplain remnants, wildlife management areas, and grasslands.</p></div>	https://treatment.plazi.org/id/1458879AFFBDFF39FF50591CFB2CFF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF39FF505D7AFD97FC45.text	1458879AFF42FF39FF505D7AFD97FC45.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmiini	<div><p>Osmiini</p><p>Genus Chelostoma Latreille</p><p>Reference: Buck et al. (2005); Delphia (2023); Eickwort (1980); Falk &amp; Lewington (2015); Müller (2015)</p><p>Subgenus Gyrodromella Michener</p></div>	https://treatment.plazi.org/id/1458879AFF42FF39FF505D7AFD97FC45	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF39FF505A5DFDFAFA14.text	1458879AFF42FF39FF505A5DFDFAFA14.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Chelostoma (Gyrodromella) rapunculi (Lepeletier 1841) E H	<div><p>Chelostoma (Gyrodromella) rapunculi (Lepeletier, 1841)</p><p>Rampion Scissor Bee</p><p>Notes: This exotic species is associated with bellflower ( Campanula) (Falk &amp; Lewington 2015) and is best known in the United States from Central New York State, only recently detected in Connecticut. Delphia (2023) reports a range expansion for C. rapunculi and C. campanularum in Montana. These are the first records for both species in the Western United States.</p><p>Material examined. Hartford Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.7979&amp;materialsCitation.latitude=41.90973" title="Search Plazi for locations around (long -72.7979/lat 41.90973)">Simsbury</a>: “1519 Hopmeadow Rd., back dune”, 41.90973 -72.7979 , 26</p><p>July 2007, coll. D.L. Wagner, 1 ♀, UCMS, det. J.S. Ascher 2007, pitfall trap, UCMS _ ENT 00025084 .</p><p>Subgenus Prochelostoma Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF42FF39FF505A5DFDFAFA14	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF39FF505B8EFDA7F82C.text	1458879AFF42FF39FF505B8EFDA7F82C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Chelostoma (Prochelostoma) philadelphi (Robertson 1891) F	<div><p>Chelostoma (Prochelostoma) philadelphi (Robertson, 1891)</p><p>Mock-orange Scissor Bee</p><p>Notes: Chelostoma philadelphi is a native species likely benefiting from ornamental plantings of its floral host, mock orange ( Philadelphus spp.). It was recently detected from Massachusetts (Veit et al. 2022[“2021”]), Vermont (https://www.inaturalist.org/observations?place_id=47&amp;subview=table&amp;taxon_id=452986), and Maine (https://www.inaturalist.org/observations?place_id=17&amp;subview=table&amp;taxon_id=452986) beyond its historical range limits.</p><p>Genus Heriades Spinola</p><p>Reference: Michener (1938)</p><p>Subgenus Neotrypetes Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF42FF39FF505B8EFDA7F82C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF39FF505EB0FBEFFD9D.text	1458879AFF42FF39FF505EB0FBEFFD9D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Xanthosarus) melanophaea subsp. melanophaea Smith 1853	<div><p>Megachile (Xanthosarus) melanophaea melanophaea Smith, 1853</p><p>Black-and-gray Leafcutter</p><p>Notes: This northern leafcutter reaches its southern range limit in Connecticut. It was recorded from Connecticut in Britton (1938), however, the only confirmed specimen record we could find is a singleton recently collected at the edge of a swamp in the northwest hills of Litchfield County .</p><p>Material examined. Litchfield Co.: Canaan: “ Sand Rd, Robbins Swamp edge”, 41.9812 -73.3535, 29 May</p><p>2007, coll. D.L. Wagner, 1 ♂, UCMS, det. J.S. Ascher 2007, UCMS _ ENT 00025275 .</p></div>	https://treatment.plazi.org/id/1458879AFF42FF39FF505EB0FBEFFD9D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF39FF505C06FF4DFCA0.text	1458879AFF42FF39FF505C06FF4DFCA0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Megachile (Xanthosarus) mucida Cresson 1878	<div><p>Megachile (Xanthosarus) mucida Cresson, 1878</p><p>Mucid Leafcutter</p><p>Notes: This southern bee is perhaps increasing at its northern range limits (Dibble et al. 2017; Gibbs et al. 2017a; Veit et al. 2022[“2021”]). In Connecticut, this species has been found in powerline ROW and inland sandy habitats.</p></div>	https://treatment.plazi.org/id/1458879AFF42FF39FF505C06FF4DFCA0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF42FF38FF5059F6FE31FEB4.text	1458879AFF42FF38FF5059F6FE31FEB4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heriades (Neotrypetes) carinata Cresson 1864	<div><p>Heriades (Neotrypetes) carinata Cresson, 1864</p><p>Carinate Armored-Resin Bee</p><p>Notes: This is the most common Heriades species regionally and locally. It has been found in six of eight</p><p>Connecticut counties.</p></div>	https://treatment.plazi.org/id/1458879AFF42FF38FF5059F6FE31FEB4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505D03FB86FC4B.text	1458879AFF43FF38FF505D03FB86FC4B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Alcidamea pilosifrons Cresson 1864	<div><p>Alcidamea pilosifrons Cresson, 1864: 386 (Connecticut lectotype designated by Cresson, 1916).</p><p>Lectotype. Male USA: Connecticut: E. Norton (ANSP)</p><p>Notes: This species is widely distributed throughout Connecticut in habitats such as agricultural land, grasslands, powerline ROW, sandplain remnants, and the edge of an inland swamp.</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505D03FB86FC4B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505F6EFE48FD14.text	1458879AFF43FF38FF505F6EFE48FD14.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heriades (Neotrypetes) variolosa subsp. variolosa (Cresson 1872) L	<div><p>Heriades (Neotrypetes) variolosa variolosa (Cresson, 1872)</p><p>Variegated Armored-Resin Bee</p><p>Notes: This bee is scarce regionally but perhaps under-recorded due to identification challenges with H. leavitti and H. carinata (especially from images). The ten Connecticut records are from three collecting events, with eight of the ten collected at the same location and date.</p><p>Genus Hoplitis Klug</p><p>Reference: Michener (1947); Neff (2009)</p><p>Subgenus Alcidamea Cresson</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505F6EFE48FD14	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505C8EFDB9FC9B.text	1458879AFF43FF38FF505C8EFDB9FC9B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hoplitis (Alcidamea) pilosifrons (Cresson 1864) F	<div><p>Hoplitis (Alcidamea) pilosifrons (Cresson, 1864)</p><p>Hairy-fronted Small-Mason Bee</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505C8EFDB9FC9B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505A4CFCAEFB7B.text	1458879AFF43FF38FF505A4CFCAEFB7B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hoplitis (Alcidamea) producta subsp. producta (Cresson 1864) F	<div><p>Hoplitis (Alcidamea) producta producta (Cresson, 1864)</p><p>Produced Small-Mason Bee</p><p>Notes: This bee has been found across Connecticut in habitats such as agricultural land, at the edge of an inland swamp, powerline ROW, and sandplain remnants.</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505A4CFCAEFB7B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505A9CFE3FF9B9.text	1458879AFF43FF38FF505A9CFE3FF9B9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hoplitis (Alcidamea) spoliata (Provancher 1888) H	<div><p>Hoplitis (Alcidamea) spoliata (Provancher, 1888)</p><p>Dilated-horned Small-Mason Bee</p><p>= Andronicus cylindricus Cresson, 1864: 384 (Connecticut holotype) (preoccupied).</p><p>Holotype. Male USA: Connecticut: E. Norton (USNM).</p><p>Notes: This species has been found in habitats such as sandplain remnants, on the shore of a major river, and powerline ROW.</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505A9CFE3FF9B9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF38FF505861FE0AF808.text	1458879AFF43FF38FF505861FE0AF808.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hoplitis (Alcidamea) truncata subsp. truncata (Cresson 1878)	<div><p>Hoplitis (Alcidamea) truncata truncata (Cresson, 1878)</p><p>Truncate Small-Mason Bee</p><p>Notes: This bee is scarce regionally and locally, with only three Connecticut records.</p><p>Material examined. New Haven Co.: New Haven: 28 June 1902, coll. E.J.S. Moore, 1 ♂, CAES , det. T. A. Zarrillo 2022, UCMS _ ENT 00028718 ; Guilford: “Leetes Island, Yale Field Station, Yale University Peabody Museum Field Station, Yale Natural Lands”, 16 August 1973, coll. C.L. Remington, 1 ♀, YPM, det. J.S. Ascher 2013, YPM ENT 829376; Windham Co.: West Thompson: 12 July 1905, coll. H.L. Viereck, 1 ♀, CAES , det. T. A. Zarrillo 2022, UCMS _ ENT 00028717 .</p><p>Subgenus Robertsonella</p></div>	https://treatment.plazi.org/id/1458879AFF43FF38FF505861FE0AF808	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF43FF3BFF505992FE55FF0B.text	1458879AFF43FF3BFF505992FE55FF0B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hoplitis (Robertsonella) simplex (Cresson 1864)	<div><p>Hoplitis (Robertsonella) simplex (Cresson, 1864)</p><p>Robertson’s Small-Mason Bee</p></div>	https://treatment.plazi.org/id/1458879AFF43FF3BFF505992FE55FF0B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF505E93FD95FD07.text	1458879AFF40FF3BFF505E93FD95FD07.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heriades simplex Cresson 1864	<div><p>Heriades simplex Cresson, 1864: 384 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: E. Norton (USNM).</p><p>Notes: Mitchell (1962) reported this species from Connecticut; however, no other specimens have been collected in the state other than the holotype, which was presumably from Hartford County (and was reported from there by Neff, 2009). Hoplitis simplex is rare in New England and expected to be a specialist on the family Hydrophylloideae, such as the genus Phacelia (Neff 2009) . Targeted surveys on its host plant may elucidate its status in the region.</p><p>Genus Osmia Panzer</p><p>Reference: Amiet et al. (2004); Griswold &amp; Rightmyer (2017); Mitchell (1962); Rightmyer et al. (2010); Rust (1974)</p><p>Sungenus Diceratosmia Robertson</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF505E93FD95FD07	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF505C9FFEEAFC8A.text	1458879AFF40FF3BFF505C9FFEEAFC8A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Diceratosmia) conjuncta Cresson 1864	<div><p>Osmia (Diceratosmia) conjuncta Cresson, 1864</p><p>Conjunct Mason</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF505C9FFEEAFC8A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF505AB8FCE8FA10.text	1458879AFF40FF3BFF505AB8FCE8FA10.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Helicosmia) caerulescens (Linnaeus 1758) E M	<div><p>Osmia (Helicosmia) caerulescens (Linnaeus, 1758)</p><p>Caerulean Mason</p><p>Notes: This holarctic species is likely adventive in the New World. Connecticut records are historic only, and it seems to have declined regionally especially southward.</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF505AB8FCE8FA10	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF505B8AFDD0F96E.text	1458879AFF40FF3BFF505B8AFDD0F96E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Helicosmia) georgica Cresson 1878	<div><p>Osmia (Helicosmia) georgica Cresson, 1878</p><p>Georgia Mason</p><p>Notes: This southern composite-associated species has been captured in Connecticut in habitats such as a meadow near the edge of a hardwood forest, a coastal wildlife preserve, and a pan trap placed in a thicket of blueberry ( Vaccinium sp.) .</p><p>Subgenus Melanosmia Schmiedeknecht</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF505B8AFDD0F96E	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF5058B1FB03F8C7.text	1458879AFF40FF3BFF5058B1FB03F8C7.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) albiventris Cresson 1864	<div><p>Osmia (Melanosmia) albiventris Cresson, 1864</p><p>White-bellied Mason</p><p>Notes: This mason bee is relatively scarce, with recent records from powerline ROW.</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF5058B1FB03F8C7	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF5059D8FE3AF855.text	1458879AFF40FF3BFF5059D8FE3AF855.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) atriventris Cresson 1864	<div><p>Osmia (Melanosmia) atriventris Cresson, 1864</p><p>Black-bellied Mason</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF5059D8FE3AF855	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF40FF3BFF505D0CFDB0FB67.text	1458879AFF40FF3BFF505D0CFDB0FB67.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia conjuncta Cresson 1864	<div><p>Osmia conjuncta Cresson, 1864: 31 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut: E. Norton (USNM).</p><p>Notes: This unusual bee species nests in snail shells (Richards et al. 2011) and perhaps for this reason is notably localized regionally.</p><p>Material examined. Fairfield Co.: Redding: “Saugatuck River”, 4 July 1933, coll. H. Spieth, 1 ♀, AMNH, det. J.S. Ascher 2012, AMNH _ BEE 00224648; Shelton: 15 June 1934, coll. N. Turner, 1 ♀, CAES, det. J.S. Ascher 2008, UCMS _ ENT 00031232; Tolland Co.: Mansfield: “Storrs”, 7 May 1931, coll. Peser, 1 ♀, UCMS, det. J.S. Ascher 2008, UCMS _ ENT 00032328 .</p><p>Subgenus Helicosmia Thomson</p></div>	https://treatment.plazi.org/id/1458879AFF40FF3BFF505D0CFDB0FB67	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505ED4FEA9FE37.text	1458879AFF41FF3AFF505ED4FEA9FE37.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) atriventris Cresson 1864	<div><p>Osmia (Melanosmia) atriventris Cresson, 1864: 29 (Connecticut lectotype designated by Cresson, 1916).</p><p>Lectotype. Female USA: Connecticut: E. Norton (USNM).</p><p>Notes: This mason bee is reported to be a major visitor to blueberries ( Vaccinium) in Maine (Dibble et al. 2017; Stubbs et al. 1997), and it has been collected from Vaccinium in Connecticut as well. It has been found at the edge of northern wetlands, agricultural land, a coastal wildlife refuge, a riverbank, powerline ROW, and an arboretum.</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505ED4FEA9FE37	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505FEFFBC9FDE1.text	1458879AFF41FF3AFF505FEFFBC9FDE1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) bucephala Cresson 1864	<div><p>Osmia (Melanosmia) bucephala Cresson, 1864</p><p>Bufflehead Mason</p><p>Notes: This is a distinctive species due to its large size and resemblance to bumble bees. It has been found in habitats such as a limestone quarry, powerline ROW, agricultural land, and meadows.</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505FEFFBC9FDE1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505C3AFAEDFC92.text	1458879AFF41FF3AFF505C3AFAEDFC92.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) collinsiae Robertson 1905	<div><p>Osmia (Melanosmia) collinsiae Robertson, 1905</p><p>Collinsia Mason</p><p>Notes: This eastern species was first detected in Connecticut at a bioblitz held at Mohegan Park in the city of Norwich (New London County) in 2002 and has since been collected in habitats such as powerline ROW .</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505C3AFAEDFC92	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505D05FEC2FC23.text	1458879AFF41FF3AFF505D05FEC2FC23.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) distincta Cresson 1864	<div><p>Osmia (Melanosmia) distincta Cresson, 1864</p><p>Beardtongue Mason</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505D05FEC2FC23	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505AC6FD94F9B4.text	1458879AFF41FF3AFF505AC6FD94F9B4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) inermis Zetterstedt 1838	<div><p>Osmia (Melanosmia) inermis Zetterstedt, 1838</p><p>Unarmed Mason</p><p>Notes: This species was reported for Connecticut in Mitchell (1962) and remains plausible in the northern counties of Connecticut although we have not been able to confirm any specimens. The reason we accept Mitchell’s record is that the other similar non-metallic species are less plausible on biogeographic grounds (Rightmyer et al. 2010). All regional records should be rechecked however with respect to updated keys to non-metallic Osmia by Rightmyer et al. (2010). Osmia inermis was last recorded in Massachusetts in 1914 (Veit et al. 2022[“2021”]), however it was detected in 2006 in Orange County, New York during a survey of the Black Rock Forest Preserve (Giles &amp; Ascher 2006). This site in southern New York State and Connecticut are believed to be at the southern range limits of this northern species.</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505AC6FD94F9B4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF50586EFAFAF900.text	1458879AFF41FF3AFF50586EFAFAF900.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) inspergens Lovell and Cockerell 1907	<div><p>Osmia (Melanosmia) inspergens Lovell and Cockerell, 1907</p><p>Polished-faced Mason</p><p>Notes: This species has been captured in powerline ROW and sandplain remnants in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF50586EFAFAF900	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3AFF505DFBFC90FBDC.text	1458879AFF41FF3AFF505DFBFC90FBDC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia distincta Cresson 1864	<div><p>Osmia distincta Cresson, 1864: 30 (Connecticut holotype).</p><p>Holotype. Female USA: Connecticut. E. Norton (USNM).</p><p>Notes: This species has been collected in habitats such as powerline ROW, wildlife management areas, pollinator gardens, and sandplain remnants in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3AFF505DFBFC90FBDC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF41FF3DFF50589AFE12FF6F.text	1458879AFF41FF3DFF50589AFE12FF6F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) proxima Cresson 1864	<div><p>Osmia (Melanosmia) proxima Cresson, 1864</p><p>Proximal Mason</p><p>Notes: There are only two known records for this species in Connecticut collected in powerline ROW in</p><p>New London County.</p><p>Material examined. New London Co.: Waterford: “ <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-72.16256&amp;materialsCitation.latitude=41.41745" title="Search Plazi for locations around (long -72.16256/lat 41.41745)">Vauxhall Rd.</a> ”, 41.41745 -72.16256, 10 May 2007, coll. N. Bricker &amp; D.L. Wagner, sex unverified, UCMS, det. J.S. Ascher 2007, bee bowl, UCMS _ ENT 00022727;</p><p>Montville: 41.43305 -72.22944; 12 May 2012, coll. B. Gagliardi &amp; N. Schoppmann, 1 ♀, UCMS, det. J.S. Ascher, UCMS _ ENT 00050296 .</p></div>	https://treatment.plazi.org/id/1458879AFF41FF3DFF50589AFE12FF6F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF505EB7FD0CFE72.text	1458879AFF46FF3DFF505EB7FD0CFE72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) pumila Cresson 1864	<div><p>Osmia (Melanosmia) pumila Cresson, 1864</p><p>Dwarf Mason</p><p>Notes: This species is the most common mason bee in Connecticut and can be found in habitats such as powerline ROW, suburban neighborhoods, coastal areas including beach dunes, scrub and marsh, agricultural land, town parks, meadows, and near inland wetlands.</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF505EB7FD0CFE72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF505FA4FC69FC9D.text	1458879AFF46FF3DFF505FA4FC69FC9D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) simillima Smith 1853	<div><p>Osmia (Melanosmia) simillima Smith, 1853</p><p>Cup-legged Mason</p><p>Notes: An unconfirmed record of this species was reported in Viereck et al. (1916) on the flowers of January jasmine ( Lonicera fragrantissima) in Connecticut, and its presence in the state was validated in 1941. Since then, this species has been found in small numbers at several locations in Connecticut, including powerline ROW, grasslands, and a coastal dune (Zarrillo et al. 2016). Ascher et al. (2014) and Rothwell &amp; Ginsberg (2019) also report this species from coastal habitats, on Gardiners Island off the coast of eastern Long Island, New York, and Napatree Point Conservation Area in Westerly, Rhode Island respectively .</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF505FA4FC69FC9D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF505D05FA23FBC2.text	1458879AFF46FF3DFF505D05FA23FBC2.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) tersula Cockerell 1912	<div><p>Osmia (Melanosmia) tersula Cockerell, 1912</p><p>Neat Mason</p><p>Notes: The only known record for this northern species in Connecticut was collected at the edge of an inland swamp in Canaan (Litchfield County). This record marks the southern end of its current range limit in the Northeastern United States.</p><p>Material examined. Litchfield Co.: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-73.3535&amp;materialsCitation.latitude=41.9812" title="Search Plazi for locations around (long -73.3535/lat 41.9812)">Canaan</a>: “ Sand Rd., Robbins Swamp edge, 41.9812 -73.3535 , 17–21</p><p>June 2007, coll. L. Saucier &amp; A. Bouchard, 1 ♀, UCMS, det. J.S. Ascher 2009, bee bowl, UCMS _ ENT 00025954 .</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF505D05FA23FBC2	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF505AD5FE0CFA3A.text	1458879AFF46FF3DFF505AD5FE0CFA3A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Melanosmia) virga Sandhouse 1939	<div><p>Osmia (Melanosmia) virga Sandhouse, 1939</p><p>Blueberry Mason</p><p>Notes: This species has been found in limited locations in Connecticut, including powerline ROW and the edges of inland bogs near Vaccinium corymbosum and Chamaedaphne calyculata .</p><p>Subgenus Osmia Panzer</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF505AD5FE0CFA3A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF505BDCFCCCF92D.text	1458879AFF46FF3DFF505BDCFCCCF92D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Osmia) cornifrons (Radoszkowski 1887) E F	<div><p>Osmia (Osmia) cornifrons (Radoszkowski, 1887)</p><p>Horn-faced Mason</p><p>Notes: The first record we could locate for this exotic species in Connecticut was collected by P. Gambino in Fairfield County on 28 April 2003. This species has become established in Connecticut and is now found throughout the state in habitats such as suburban neighborhoods, agricultural land, coastal beach dunes and scrub, sandplain remnants, meadows, university campuses, and pollinator gardens .</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF505BDCFCCCF92D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF46FF3DFF5058F5FBCDF84D.text	1458879AFF46FF3DFF5058F5FBCDF84D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Osmia) lignaria subsp. lignaria Say 1837	<div><p>Osmia (Osmia) lignaria lignaria Say, 1837</p><p>Eastern Blue Orchard Mason</p><p>Notes: Osmia lignaria lignaria has not been collected in Connecticut since 2017, despite considerable collecting efforts for megachilids in recent years, including in agricultural settings (C. T. Maier unpublished). Interesting to note that in 1905, Osmia lignaria was the most abundant bee collected in apple, at 19% of all bees (Britton and Viereck 1906), while recently in NY apple orchards, O. lignaria represented 0.04% of the bees in apple, and all species of Osmia together represented 0.2% (Russo et al. 2017). LeCroy e t al. (2020) in the mid-Atlantic states reported O. lignaria to be declining 2003–2017 at a mean rate of 13.78% per year.</p></div>	https://treatment.plazi.org/id/1458879AFF46FF3DFF5058F5FBCDF84D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505FA4FD80FDCF.text	1458879AFF47FF3CFF505FA4FD80FDCF.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melittinae	<div><p>Melittinae</p><p>Genus Macropis Panzer</p><p>Reference: Snelling and Stage (1995)</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505FA4FD80FDCF	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505CD0FE54FD5D.text	1458879AFF47FF3CFF505CD0FE54FD5D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Macropis (Macropis) ciliata Patton 1880	<div><p>Macropis (Macropis) ciliata Patton, 1880</p><p>Ciliate Yellow Loosestrife Bee</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505CD0FE54FD5D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505B59FDF5FA71.text	1458879AFF47FF3CFF505B59FDF5FA71.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Macropis (Macropis) nuda (Provancher 1882) H	<div><p>Macropis (Macropis) nuda (Provancher, 1882)</p><p>Dark-footed Loosestrife Bee</p><p>Notes: There are only six records of this northern species in Connecticut; five are historic (1921–1935), with the most recent record from 2007.</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505B59FDF5FA71	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505BA9FDBEF984.text	1458879AFF47FF3CFF505BA9FDBEF984.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Macropis (Macropis) patellata Patton 1880	<div><p>Macropis (Macropis) patellata Patton, 1880</p><p>Patellate Yellow Loosestrife Bee</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505BA9FDBEF984	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505D44FD2FFB46.text	1458879AFF47FF3CFF505D44FD2FFB46.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Macropis ciliata Patton 1880	<div><p>Macropis ciliata Patton, 1880: 31 . (Connecticut syntype).</p><p>Syntype. Male USA: Connecticut: New Haven Co.: “New Haven” “Waterbury”, June-July, W. H. Patton (lost?) .</p><p>Notes: Males were described from individuals collected in New Haven County, Connecticut —5 from the town of New Haven collected on the flowers of northern dewberry ( Rubus flagellaris [= R. villosus]) on 22 June, and another from the town of Waterbury collected on the flowers of gray dogwood ( Cornus racemosa [= C. paniculata]) on 4 July (year of collection not specified in description). These syntypes are presumed lost. This species is the presumed host of Epeoloides pilosulus, is listed as threatened in Connecticut (Connecticut Department of Energy and Environmental Protection 2015b) and is currently a regional species of greatest conservation need in four eastern states in the United States: Connecticut, Massachusetts, New Jersey, and Maryland (United States Geological Survey 2015). The historical range of this species spans Wisconsin eastward to the province of Quebec, Canada and south to Georgia (Mitchell 1960). In Connecticut, this species has historically been detected in low numbers; however, in recent bee surveys spanning the years 2005–2017 it has been detected in seven locations in New London and Hartford Counties (n = 15).</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505D44FD2FFB46	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3CFF505ED5FEF6FE72.text	1458879AFF47FF3CFF505ED5FEF6FE72.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Osmia) taurus Smith 1873	<div><p>Osmia (Osmia) taurus Smith, 1873</p><p>Taurus Orchard Mason</p><p>Notes: The first record that we could locate for this exotic species in Connecticut was collected on 25 April 2009 by R. J. Pupedis in Willimantic (Windham County). This species is becoming more widespread in Connecticut, now found in seven counties. LeCroy et al. (2020) in the mid-Atlantic states found O. taurus increasing from 2003– 2017 at a mean rate of 16.99% per year .</p><p>MELITTIDAE</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3CFF505ED5FEF6FE72	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF47FF3FFF50581DFE14FE99.text	1458879AFF47FF3FFF50581DFE14FE99.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Macropis patellata Patton 1880	<div><p>Macropis patellata Patton, 1880: 33 . (Connecticut syntype).</p><p>Syntype. Male USA: Connecticut: New Haven Co.: “Plymouth” “Waterbury”, July-August, H. F. Bassett or W. H. Patton (lost?) .</p><p>Notes: The male syntypes noted above are also presumed lost. All records for this species in Connecticut and from Massachusetts (Veit et al. 2022[“2021”]) are historic, although there are some recent records of the species from New Jersey (E. Wyman pers. comm.), New York (White et al. 2022), and Vermont (S. Hardy pers. comm.). Macropis patellata is recognized as a species of greatest conservation need in Delaware, Massachusetts, and Maryland (United States Geological Survey 2015) .</p><p>Genus Melitta</p><p>Reference: Snelling and Stage (1995)</p><p>Subgenus Cilissa Leach</p></div>	https://treatment.plazi.org/id/1458879AFF47FF3FFF50581DFE14FE99	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF44FF3FFF505BFBFC99F90B.text	1458879AFF44FF3FFF505BFBFC99F90B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Andrena (Micrandrena) illinoiensis Robertson 1891	<div><p>Andrena (Micrandrena) illinoiensis Robertson, 1891, Excluded</p><p>Ilinois Mini-Miner</p><p>Notes: Citation of Andrena illinoiensis for New York State (White et al. 2022) likely reflects historical confusion with A. nigrae (and also A. salictaria especially northwards in the region, see discussion by Ribble 1968). The closest fully confirmed records of A. illinoiensis cited in the revision are from Columbus, Ohio (Ribble 1968). We therefore exclude this species from our confirmed list.</p></div>	https://treatment.plazi.org/id/1458879AFF44FF3FFF505BFBFC99F90B	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF44FF3FFF505F01FA33FD1D.text	1458879AFF44FF3FFF505F01FA33FD1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melitta (Cilissa) americana (Smith 1853) M	<div><p>Melitta (Cilissa) americana (Smith, 1853)</p><p>Cranberry Blunt-horn</p><p>Notes: This species has been collected from a host plant, American cranberry ( Vaccinium macrocarpon), in Connecticut on 10 and 25 July 1985 in East Haddam (Middlesex County) in a fen at the north end of Lake Hayward by F. Campbell, and 10 and 13 July 2009 near a wetland in the Pachaug State Forest in Voluntown (New London County) by C. T. Maier. Although this species was reported from the Finger Lakes Region of New York State by White et al. (2022), this species is not confirmed from anywhere in New York, and the Finger Lakes records surely pertain instead to Melitta eickworti Snelling and Stage, 1995, which has a type locality of, “South Hill Preserve, vicinity of Ithaca, Tompkins County, New York ” and was named in honor of Cornell Professor George Eickwort.</p></div>	https://treatment.plazi.org/id/1458879AFF44FF3FFF505F01FA33FD1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF44FF3FFF505C85FED0FAE8.text	1458879AFF44FF3FFF505C85FED0FAE8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melitta (Cilissa) melittoides (Viereck 1909) L	<div><p>Melitta (Cilissa) melittoides (Viereck, 1909)</p><p>Lyonia Blunt-horn</p><p>Notes: Seventy-eight percent of the records (n = 54) for this species in Connecticut were collected near inland wetlands such as ponds and lakes by G. I. Stage in Stafford and Ellington (Tolland County), with 40 specimens captured between 1972–1976, and fourteen captured between 1990–1999. Twenty percent (n = 14) were captured during surveys of powerline ROW in Montville and Bozrah ( Tolland County) with dates spanning 2005–2017. Fifty-eight percent of the Connecticut records were netted from its host plant, maleberry ( Lyonia ligustrina). All but one early record collected in 1921 (from Colebrook, Litchfield County) are from eastern Connecticut in Tolland and New London County .</p><p>APPENDIX 2. Problematic Species</p><p>Here we report and annotate eight excluded species whose presence in Connecticut is improbable based on known distribution, two unresolved morphotypes, five species with taxonomic confusion, and three expected species including one also with taxonomic confusion (Table 4) that could be in Connecticut based on recent records in neighboring states.</p></div>	https://treatment.plazi.org/id/1458879AFF44FF3FFF505C85FED0FAE8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF44FF3FFF505893FAD0F857.text	1458879AFF44FF3FFF505893FAD0F857.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Protandrena (Pterosarus) albitarsis (Cresson 1872)	<div><p>Protandrena (Pterosarus) albitarsis (Cresson, 1872), Excluded</p><p>White-footed Bare-Miner</p><p>Notes: The citation of P. albitarsis for Connecticut in the table “Distribution of species of Panurginus, Pseudopanurgus, Psaenythia, and Calliopsis by states” in Mitchell (1960) is clearly in error, as the reported range in the species account states, “Illinois to North Carolina and Georgia, west to Texas.” Supporting this interpretation of an error in the table is the citation of “New England states” in the species account of P. andrenoides but the omission of any New England state in the table entries. We are therefore excluding P. albitarsis from our confirmed list.</p></div>	https://treatment.plazi.org/id/1458879AFF44FF3FFF505893FAD0F857	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF5058F0FDE3F848.text	1458879AFF45FF3EFF5058F0FDE3F848.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochlorella gratiosa (Smith 1853)	<div><p>Augochlorella gratiosa (Smith, 1853), Excluded</p><p>Southeastern Green-Sweat Bee</p><p>Notes: This species was reported to occur in Connecticut by Mitchell (1960), and there are suspect records for this species in northern North America in specimen databases (USGS _ DRO466886, INHS 361008) and in White et al. (2022) in New York . The verified range of this species is not known to extend north beyond southern New Jersey and Washington D.C. ( Ordway 1966) , and Coelho (2004) further refines the boundaries for this species as North Carolina to southern Florida, along the Gulf Coast states to eastern Texas. We therefore exclude this species from the confirmed list for Connecticut .</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF5058F0FDE3F848	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF505B26FD3DF9E6.text	1458879AFF45FF3EFF505B26FD3DF9E6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hylaeus (Hylaeus) rudbeckiae (Cockerell and Casad 1895)	<div><p>Hylaeus (Hylaeus) rudbeckiae (Cockerell and Casad, 1895), Excluded</p><p>Coneflower Masked Bee</p><p>Notes: This species is reported in Mitchell (1960) and Hurd (1979) to occur in Connecticut, however Mitchell (1960) notes that the records are based on females and are tentative. No other records for this species in Connecticut or New England can be found. The distribution of this species suggests that the specimens reviewed may be atypical and further study is needed.</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF505B26FD3DF9E6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF505E8CFBB7FDAB.text	1458879AFF45FF3EFF505E8CFBB7FDAB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Melissodes (Melissodes) communis subsp. communis Cresson 1879	<div><p>Melissodes (Melissodes) communis communis Cresson, 1878, Possible</p><p>Common Longhorn</p><p>Notes: Although treated as hypothetical for Massachusetts by Veit et al. (2022[“2021”]), soon after that checklist was published confirmation of its presence and persistence in that state was obtained through photos submitted to iNaturalist (https://www.inaturalist.org/observations/88061067), suggesting that a prior specimen record (LaBerge 1956a) from the area was likely valid. Although there are no other records from elsewhere in the region north of southern New Jersey, the newly confirmed Massachusetts records suggest that this species likely achieved its apparently disjunct range by traversing Connecticut at some point .</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF505E8CFBB7FDAB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF505C6CFD7AFC93.text	1458879AFF45FF3EFF505C6CFD7AFC93.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada affabilis Cresson 1878	<div><p>Nomada affabilis Cresson, 1878, Possible (superba group)</p><p>Affable Nomad</p><p>Notes: This species was reported in Viereck et al. (1916) as probable for Connecticut, however we have not been able to locate any specimens. Recent records of its host, E. atriventris, from Connecticut (https://www. inaturalist.org/observations/180138298) and Massachusetts (Veit et al. 2022[“2021”]) suggests N. affabilis may genuinely occur or have occurred in Connecticut.</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF505C6CFD7AFC93	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF505D04FC59FBFB.text	1458879AFF45FF3EFF505D04FC59FBFB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada skinneri Cockerell 1908	<div><p>Nomada skinneri Cockerell, 1908, Taxonomic confusion (ruficornis group)</p><p>Skinner’s Nomad</p><p>Notes: No modern workers seem to recognize this species, but it was listed for Connecticut by Mitchell (1962). The type is from Pennsylvania, but it is uncertain if the Connecticut specimen matches it. This species was described in Cockerell (1908) and may be a synonym or relative of N. depressa (see entry for that species). Given the uncertain status of this form, we cite it here rather than on the main list .</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF505D04FC59FBFB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF45FF3EFF505A1CFCB1FAB5.text	1458879AFF45FF3EFF505A1CFCB1FAB5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Nomada valida Smith 1854	<div><p>Nomada valida Smith, 1854, Excluded (ruficornis group)</p><p>True Nomad</p><p>Notes: The determination of the specimen in Zarrillo &amp; Stoner (2019) proved to be erroneous. We are therefore removing this species from our confirmed list.</p></div>	https://treatment.plazi.org/id/1458879AFF45FF3EFF505A1CFCB1FAB5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF31FF505ED5FDEBFE08.text	1458879AFF4AFF31FF505ED5FDEBFE08.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Augochlorella persimilis (Viereck 1910)	<div><p>Augochlorella persimilis (Viereck, 1910), Taxonomic confusion, Possible</p><p>Prairie Green-Sweat Bee</p><p>Notes: This species is easily confused with its cryptic sister species A. aurata, which is very common throughout Connecticut and the northeastern US . There are unvalidated records for A. persimilis in Rhode Island (Rothwell &amp; Ginsberg 2019), New Hampshire (University of New Hampshire Collection of Insects and other Arthropods 2023), and Connecticut (AMNH _ BEE 00185030). Until these are rechecked, we regard this species as a doubtful occurrence in New England .</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF31FF505ED5FDEBFE08	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF31FF505D6EFE41FBF3.text	1458879AFF4AFF31FF505D6EFE41FBF3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus)	<div><p>Lasioglossum (Dialictus) nr. atwoodi Gibbs 2010, Unresolved morphotype</p><p>Atwood’s Metallic-Sweat Bee</p><p>Notes: The female specimen in question was identified as L. nr. atwoodi by J. Gibbs in 2011. It has mesepisternum strongly rugose, dorsal opening of T1 acarinarial fan as wide as lateral acarinarial patches, T1 declivitous surface coriarious, metapostnotum with rugae not reaching posterior margin, head and mesosoma bluish, and supraclypeal area sparsely punctate. It was collected on an organic farm in a bee bowl in 2009 in the town of Cheshire (New Haven County).</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF31FF505D6EFE41FBF3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF31FF505F93FF4BFCB5.text	1458879AFF4AFF31FF505F93FF4BFCB5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) abanci (Crawford 1932)	<div><p>Lasioglossum (Dialictus) cf. abanci (Crawford, 1932), Unresolved morphotype</p><p>Appalachian Metallic-Sweat Bee</p><p>Notes: This uncommon species has historically been confused with L. oblongum, L. planatum, and L. subviridatum (Gibbs 2011) . Specimens that agree with L. abanci characters using Gibbs et al. (2011) have been collected in Connecticut and throughout the northeast, however they are not ‘true’ L. abanci (J. Gibbs pers. comm.). ‘True’ L. abanci have been collected only in or near the type locality in the Great Smoky Mountains in North Carolina (J. Gibbs pers. comm) and the identity of the similar morphospecies found widely in New England is unclear.</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF31FF505F93FF4BFCB5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF31FF505A25FD9AFA12.text	1458879AFF4AFF31FF505A25FD9AFA12.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) cephalotes (Dalla Torre 1896)	<div><p>Lasioglossum (Dialictus) cephalotes (Dalla Torre, 1896), Taxonomic confusion</p><p>Large-headed Metallic-Cuckoo-Sweat Bee</p><p>Notes: This uncommon cleptoparasite of Lasioglossum zephyrus was reported from Connecticut in Hurd (1979) and Britton and Viereck (1906) [as Paralictus cephalicus Robertson], however this species closely resembles the subsequently described L. rozeni (Gibbs 2011) . As we cannot validate the older Connecticut records, and because confusion is likely with recently described forms, we are excluding this species from our confirmed list, even though there are confirmed reports from eastern Long Island (Suffolk County), New York (Gibbs 2011) and Philadelphia, Pennsylvania (Gibbs pers. comm.).</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF31FF505A25FD9AFA12	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF31FF505B84FEABF926.text	1458879AFF4AFF31FF505B84FEABF926.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Dialictus) reticulatum (Robertson 1890)	<div><p>Lasioglossum (Dialictus) reticulatum (Robertson, 1890), Excluded</p><p>Reticulate Metallic-Sweat Bee</p><p>Notes: We regard a report from Connecticut by Mitchell (1960) [as Dialictus reticulatus (Robertson)] as erroneous since the species is fully confirmed north only to North Carolina and has frequently been confused with L. bruneri .</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF31FF505B84FEABF926	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4AFF30FF5058F8FE94FEB4.text	1458879AFF4AFF30FF5058F8FE94FEB4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lasioglossum (Lasioglossum) forbesii (Robertson 1892)	<div><p>Lasioglossum (Lasioglossum) forbesii (Robertson, 1892), Taxonomic confusion</p><p>Forbes’ Sweat Bee</p><p>Notes: Although reported for Connecticut by Mitchell (1960), L. forbesii was not reported for Connecticut in McGinley’s (1986) revision. However, L. forbesii was reported from Brainard, Rensselaer County, New York in McGinley (1986), which is very close to Connecticut. Z.M. Portman reviewed two historical specimens from Colebrook, Connecticut in the insect collection at the Museum of Comparative Zoology at Harvard University that were misidentified as L. forbesii, as well as two misidentified specimens from Massachusetts (Z.M. Portman, pers.</p><p>comm.). As such, we cannot confirm the presence of L. forbesii in Connecticut at this time, as historical records may refer to similar species, in particular L. coriaceum .</p><p>Megachilidae</p></div>	https://treatment.plazi.org/id/1458879AFF4AFF30FF5058F8FE94FEB4	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
1458879AFF4BFF30FF505F6EFB89FDF0.text	1458879AFF4BFF30FF505F6EFB89FDF0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Osmia (Helicosmia) chalybea Smith 1853	<div><p>Osmia (Helicosmia) chalybea Smith, 1853, Taxonomic confusion</p><p>Steel-blue Mason</p><p>Notes: Mitchell (1962) and Rust (1974) report this species from Connecticut; however, these records may be the result of taxonomic confusion with the more northern Osmia texana (Goldstein &amp; Ascher 2016) . We do not have details of voucher specimens for these records and are therefore excluding this species from our confirmed list even though it was recorded from Gardiners Island off the eastern tip of Long Island (Ascher et al. 2014) and could conceivably occur or have occurred in Connecticut just across Long Island Sound .</p></div>	https://treatment.plazi.org/id/1458879AFF4BFF30FF505F6EFB89FDF0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zarrillo, Tracy A.;Stoner, Kimberly A.;Ascher, John S.	Zarrillo, Tracy A., Stoner, Kimberly A., Ascher, John S. (2025): Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA). Zootaxa 5586 (1): 1-138, DOI: 10.11646/zootaxa.5586.1.1, URL: https://doi.org/10.11646/zootaxa.5586.1.1
