Lasioglossum (Dialictus) tegulare ( Robertson, 1890 )

Gardner, Joel & Gibbs, Jason, 2023, Revision of the Nearctic species of the Lasioglossum (Dialictus) gemmatum species complex (Hymenoptera: Halictidae), European Journal of Taxonomy 858 (1), pp. 1-222 : 174-182

Lasioglossum (Dialictus) tegulare ( Robertson, 1890)

Figs 70–72 , 83B , 85B , 98B , 101B , 118B , 117A

Halictus tegularis Robertson, 1890: 318 (lectotype designated in Cresson (1928), ♀, deposited in ANSP, type no. 4254, examined).

Halictus tegularis – Dalla Torre 1896: 58 (catalogue). — Cockerell 1896: 294 (comparison to pseudotegularis); 1899: 5 (catalogue). — Cresson 1928: 65 (lectotype designation).

Chloralictus tegularis – Robertson 1902: 248, 249 (key).

Halictus (Chloralictus) tegularis – Viereck 1916: 702, 703 (key to species), 706 (checklist). — Ellis 1914: 101 (comparison to jamaicae = gemmatum and coactus), 103 (comparison to perparvum). — Sandhouse 1924: 2 (key to species), 11 (comparison to ellisiae).

Lasioglossum (Chloralictus) tegulare – Michener 1951: 1118 (catalogue).

Dialictus tegularis – Mitchell 1960: 423 (key, redescription). — Hurd 1979: 1972 (catalogue). — Moure & Hurd 1987: 134 (catalogue).

Lasioglossum (Dialictus) tegulare – Krombein 1967: 466 (catalogue). — Gibbs 2009a: 13 (key, redescription); 2010: 37, 45 (key), 323 (redescription); 2011: 25, 32 (key to species), 195 (review). — Wolf & Ascher 2009: 143 (checklist). — Gibbs et al. 2013: 87 (checklist). — Kilpatrick et al. 2020: 84 (checklist).

Diagnosis

Females of L. tegulare have the tegula relatively small (reaching but not exceeding posterior margin of mesoscutum in dorsal view), with inner posterior margin weakly concave and a narrowly rounded posterior projection smaller than 0.5 OD, and densely (IS <1 PD) to moderately densely punctate (IS = 1–2 PD); mesoscutum and mesepisternum very dull, strongly tessellate, imbricate, or rugulose; mesepisternum punctures crowded (IS = 0 PD) and indistinct; metapostnotum with strong, coarse rugae reaching posterior margin and covering propodeum dorsolateral slope, shiny in basal half; face short (length/width ratio usually ≤ 0.83); T2–T4 flat in lateral view; T3 without subapical tomentum; and head and mesosoma usually olive green.

Females of L. tegulare are most similar to those of L. coactus , L. ellisiae , L. holzenthali sp. nov., and L. puteulanum . Females of L. coactus have T2–T4 convex in lateral view and T3 with dense and complete subapical band of tomentum. Females of L. ellisiae have the mesepisternum punctures distinctly separated and round, and the mesoscutum posterior half and mesepisternum often shiny. Females of L. holzenthali have the mesepisternum punctures distinctly separated (up to 1 PD) and metapostnotum rugae not extending onto propodeum dorsolateral slope. Females of L. puteulanum have the face longer (length/width ratio usually> 0.83), tegula more sparsely punctate (IS = 1–2 PD, closer to 2 PD), and head and mesosoma usually blue (rarely olive green).

Males of L. tegulare have the tegula relatively small (as in the female); mesoscutum relatively coarsely and moderately densely punctate (IS = 1–2 PD); metapostnotum shiny with strong subparallel rugae; discs of T1–T2 and premarginal line uniformly densely punctate (IS ≤ 1 PD); face with sparse tomentum below eye emargination, more concentrated in paraocular area; and head and mesosoma usually olive green.

Males of L. tegulare are most similar to those of L. coactus , L. ellisiae , and L. puteulanum . Males of L. coactus have the discs of T1–T3 even more densely punctate (IS <1 PD) and strongly convex, and apical rims abruptly and deeply depressed. Males of L. ellisiae have the mesoscutum usually more finely and densely punctate laterally (IS <1 PD) and disc of T2 becoming more sparsely punctate near and on premarginal line (IS = 1–2 PD). Males of L. puteulanum have the face below eye emargination evenly covered in tomentum, tegula more sparsely punctate (IS = 1–3 PD), and the head and mesosoma usually blue to blue-green.

Etymology

Robertson (1890) formed the specific epithet ʻ tegularis ʼ from the Latin noun ʻ tegula ʼ (roof tile, literally ʻcovering instrumentʼ, now applied to the sclerite covering the wing base), and the adjectival suffix ʻ -aris ʼ (of or pertaining to).

Material examined

Holotype UNITED STATES – Connecticut • ♀; New Haven ; [41.31° N, 72.93° W]; 6 Jun. 1878; W.H. Patton leg.; ANSP 4254 .

Other material

CANADA – Ontario • 1 ♀; Haldimand Norfolk Co., Nixon West ; [42.85° N, 80.4° W]; 22 Jul. 1995; L. Packer leg.; PCYU-LAS:875 • 1 ♂; Caledon, Gschwendtner property; 43.8148° N, 79.9768° W; 18 Sep. 2003; J. Grixti leg.; PCYU • 1 ♀; Dunrobin ; 45.4124° N, 76.0398° W; 9 Jul. 2009; J. Phillips leg.; WRME 0414013 • 1 ♀; Kinburn ; 45.3775° N, 76.1277° W; 16 Jun. 2009; J. Phillips leg.; WRME 0414015 • 5 ♀♀; Norfolk ; 42.6493° N, 80.5687° W; 11 Jun. 2007; PCYU • 1 ♂; Norfolk ; 42.6497° N, 80.5729° W; 11 Aug. 2007; A. Taylor leg.; PCYU • 1 ♀; Toronto, Albany avenue parquette; 43.66585° N, 79.41071° W; 11 Jul. 2010; J. Gibbs leg.; PCYU-KCC-10096 . – Quebec • 1 ♀, 1 ♂; CMN (Natural Heritage Campus), Gatineau ; 45.4462° N, 75.8131° W; elev. 113 m; 17 Jul. 2018; T. M. Onuferko leg.; CMNC .

UNITED STATES – Arkansas • 1 ♀; Garland Co., Lake Ouachita State Park ; [34.617° N, 93.18° W]; May 1972; G. Heinrich leg.; SEMC • 4 ♀♀; Polk Co., Rich Mountain Fire Tower, 12.5 (air) km NW of Mena; 34.6743° N, 94.3292° W; 10 Apr. 2015; E. Riley, YPT leg.; TAMU-ENTO X1234686, X1239110, X1248045, X1289439 • 2 ♀♀; Magazine Mountain ; [35.17° N, 93.64° W]; elev. 762 m; 11 Jun. 1994; W.F. Chamberlain leg.; TAMU-ENTO X1316102, X1419611 . – Connecticut • 1 ♀; New London Co.; 41.547° N, 72.069° W; 1 Jun. 2002; S.W. Droege leg.; PCYU USGS-DRO 005683 . – District of Columbia • 2 ♀♀; Fairfax Co.; 38.9309° N, 77.116° W; 24 Jun. 2006; Pascarella leg.; PCYU USGS-DRO 058092 , 058098 • 1 ♂; Washington ; 38.9463° N, 77.0344° W; 16 Jun. 2004; S.W. Droege leg.; PCYU • 1 ♂; Washington ; 38.879° N, 77.0333° W; 13–14 Jul. 2004; C. Osborn leg.; PCYU • 1 ♂; Washington ; 38.891° N, 77.0308° W; 15–16 Jul. 2004; C. Osborn leg.; PCYU • 1 ♂; Washington ; 38.8694° N, 77.0261° W; 4–5 Oct. 2004; E. Keto leg.; PCYU • 1 ♂; Washington ; 38.885° N, 77.034° W; 18–19 Oct. 2004; E. Keto leg.; PCYU • 1 ♀; Washington ; 38.8871° N, 77.0128° W; 1 Sep. 2005; N.B. Staff leg.; PCYU • 1 ♀; Washington ; 38.8912° N, 77.0242° W; 16 Aug. 2006; S.W. Droege leg.; PCYU . – Georgia • 1 ♂; Cobb Co., Lost Mountain ; [33.94° N, 84.7° W]; 13 Jul. 1913; PCYU • 1 ♀; Floyd Co., Rome ; [34.26° N, 85.16° W]; 10–16 Aug. 1988; A.L. Wharton leg.; TAMU-ENTO X1388293 • 1 ♀; Athens ; [33.95° N, 83.36° W]; 16 Apr. 1977; C.W. Fisher leg.; TAMU-ENTO X1399194 • 1 ♂; Rabun Bald ; [34.97° N, 83.3° W]; elev. 1219–1463 m; 21 Aug. 1913; PCYU . – Iowa • 1 ♀; Clay Co., IA Chicago and Eastern RR , 0.8 km E of Everly ; 43.1603° N, 95.3086° W; elev. 410 m; 7 Aug. 2003; C. Hemsley leg.; PCYU . – Kentucky • 1 ♀; Laurel Co.; 37.1528° N, 84.1167° W; 27 Jul. 2007; S.W. Droege leg.; PCYU • 1 ♀; Wayne Co.; 36.924° N, 84.8715° W; 27 Jul. 2007; S.W. Droege leg.; PCYU USGS-DRO 081955 . – Maryland • 1 ♂; Anne Arundel Co.; 38.7839° N, 76.7014° W; B. Hollister leg.; PCYU • 4 ♀♀; ibid.; B. Hollister leg.; SEMC • 1 ♀; Calvert Co.; 38.5361° N, 76.5175° W; 1–14 Jul. 2006; M. Gates leg.; PCYU USGS-DRO 067768 • 1 ♀; Caroline Co.; 39.1098° N, 75.7724° W; 7 Apr. 2005; S.W. Droege leg.; PCYU • 1 ♀; Caroline Co.; 38.9194° N, 75.8279° W; 13 May 2007; M. Price leg.; PCYU • 6 ♀♀; Prince George’s Co., Temple Hills ; [38.81° N, 76.95° W]; 22 Aug. 1976; G.C. Eickwort leg.; CUIC • 1 ♀; Prince George’s Co.; 39.0815° N, 76.7887° W; 19–20 May 2003; R. Jackowski leg.; BBSL USGS-DRO 018675 • 1 ♀; Prince George’s Co.; 39.08454° N, 76.8055° W; 19–20 May 2003; R. Jackowski leg.; BBSL USGS-DRO 018765 • 1 ♀; Prince George’s Co.; 38.9123° N, 76.755° W; 12–13 Aug. 2003; Haramis and Arch leg.; BBSL USGS-DRO 013084 • 1 ♀; Prince George’s Co.; 38.9977° N, 76.7573° W; 19 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 026947 • 1 ♀; Prince George’s Co.; 39.0002° N, 76.7505° W; 19 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 026986 • 1 ♀; Prince George’s Co.; 38.9764° N, 76.7491° W; 20 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 027244 • 1 ♀; Prince George’s Co.; 39.0352° N, 76.8739° W; 21 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 027444 • 1 ♀; Prince George’s Co.; 38.9903° N, 76.7515° W; 20 Aug. 2004; S. Kolski leg.; BBSL USGS-DRO 027914 • 1 ♀; Prince George’s Co.; 38.9344° N, 76.7373° W; 17 Aug. 2002; E.J. Jackson leg.; PCYU USGS-DRO 008304 • 1 ♂; Prince George’s Co.; 38.9123° N, 76.755° W; 12–13 Aug. 2003; Haramis and Arch leg.; PCYU USGS-DRO 013026 • 1 ♀; Prince George’s Co.; 38.9959° N, 76.7886° W; 2 Sep. 2004; S. Na leg.; PCYU USGS-DRO 031553 • 1 ♀; Prince George’s Co.; 38.9949° N, 77.2527° W; 24 Jun. 2006; H. Katki leg.; PCYU USGS-DRO 058176 • 1 ♀; Talbot Co.; 38.8° N, 76.283° W; 7–8 May 2005; W. Steiner leg.; PCYU • 1 ♂; Wicomico Co.; 38.2909° N, 75.5364° W; 12 Jun. 2004; S.W. Droege leg.; PCYU • 1 ♀; Cabin John ; [38.98° N, 77.16° W]; 16Apr. 1915; J. C. Crawford leg.; SEMC . – Massachusetts • 1 ♀; Middlesex Co., Dunstable , sandpit 0.1 mi. E of airport; [42.694° N, 71.547° W]; 29 Apr. 2006; M.F. Veit leg.; PCYU • 1 ♀; Middlesex Co., Harvard: Oxbow National Wildlife Refuge , Wallace Road ; [42.5° N, 71.62° W]; 28 May 2006; M.F. Veit leg.; PCYU . – Michigan • 1 ♀; Ingham Co., East Lansing , MSU arboretum; 42.72° N, 84.475° W; 30 Jun. 2013; J. Gibbs leg.; WRME 0414022 • 1 ♀; Ingham Co., East Lansing, Whitehills Park ; 42.753° N, 84.48° W; 4 Jul. 2013; J. Gibbs leg.; WRME • 1 ♂; Ingham Co., Lansing River Trail ; 42.707° N, 84.528° W; 3 Aug. 2013; J. Gibbs leg.; WRME . – Minnesota • 1 ♀; Houston Co.; [43.7° N, 91.5° W]; 26 May 1940; C.E. Pederson leg.; UMSP _ BEE 110267 . – Missouri • 1 ♀; Greene Co., Rocky Barrens Conservation Area, 1.5 mi. NE of Willard, T30 N R22 W Sec. 19 (N1/2); [37.32° N, 93.4° W]; 14 Apr. 2006; Arduser leg.; ex Lesquerella filiformis ; PCYU • 3 ♀♀; Hickory Co., Pomme de Terre State Park ; [37.87° N, 93.3° W]; 27 Jul. 1979; W. D. Forester leg.; ex “False Orange ” [ Citrus sp. ?]; TAMU-ENTO X1596629, X1596657, X1599936 • 1 ♀; Ozark Co., Caney Mountain Conservation Area, along service road (N trail), T23 N R13 W Sec. 9; [36.69° N, 92.394° W]; 16 Jul. 2006; R. P. Jean leg.; PCYU • 1 ♂; Milo ; [37.76° N, 94.31° W]; 29 Jun. 1964; J.C. Schaffner leg.; TAMU-ENTO X1393314 . – Nebraska • 1 ♀; Douglas Co.; 41.2796° N, 95.9073° W; 10 May 2007; S.W. Droege leg.; PCYU USGS-DRO 075887 . – New Jersey • 1 ♀; Atlantic Co.; 39.5833° N, 74.7667° W; 21 Jul. 2003; B. Ahlstrom leg.; PCYU • 1 ♂; Ramsey ; [41.06° N, 74.14° W]; 10 Jul. 1913; CUIC • 1 ♂; Westfield ; [40.66° N, 74.35° W]; 15 Aug. 1956; G. R. Ferguson leg.; BBSL700632 • 1 ♂; Weymouth ; [39.52° N, 74.78° W]; 26 Jul. 1923; CUIC . – New York • 1 ♂; Albany Co., Colonie ; [42.72° N, 73.83° W]; 20 Aug. 1969; G. and K. Eickwort leg.; CUIC • 1 ♀; Albany Co., Partridge Run State Game Area , 5 mi. N of Rensselaerville; [42.58° N, 74.15° W]; 6 Jun. 1970; G. and K. Eickwort leg.; CUIC • 1 ♀; Albany Co., Rensselaerville ; [42.52° N, 74.14° W]; 28 Jul. 1970; G. and K. Eickwort leg.; CUIC • 1 ♀; Albany Co., Rensselaerville, Huyck Reserve ; [42.515° N, 74.14° W]; 12 Jun. 1969; G. and K. Eickwort leg.; CUIC • 1 ♀; Cayuga Co., Fair Haven Beach State Park ; [43.34° N, 76.68° W]; 8 Jun. 1968; G. and K. Eickwort leg.; CUIC • 1 ♂; Nassau Co., Floral Park ; [40.72° N, 73.7° W]; 4 Jul. 1982; D. Yanega leg.; CUIC • 7 ♂♂; Nassau Co., Hempstead Lake State Park ; [40.69° N, 73.64° W]; 4–6 Jul. 1974; G.C. Eickwort leg.; CUIC • 3 ♀♀, 1 ♂; Nassau Co., Jones Beach State Park ; [40.595° N, 73.5° W]; 31 Jul. 1974; G.C. Eickwort leg.; CUIC • 1 ♀, 1 ♂; ibid.; 26 Jun. 1976; G. Eickwort leg.; CUIC • 2 ♀♀; Nassau Co., Kennedy Wildlife Sanctuary, Tobay Beach ; [40.611° N, 73.432° W]; 18 Jun. 1989; G.C. Eickwort leg.; CUIC • 1 ♀; Nassau Co., Tobay Beach ; [40.611° N, 73.432° W]; 24–26 Jun. 1976; G.C. Eickwort leg.; CUIC • 1 ♂; Queens Co., Floral Park , Long Island; [40.72° N, 73.7° W]; 6 Aug. 1983; D. Yanega leg.; SEMC • 1 ♀; Suffolk Co.; [40.9° N, 72.7° W]; 6 Sep. 2005; S.W. Droege leg.; PCYU USGS-DRO 046015 • 1 ♀; ibid.; 6 Sep. 2005; S.W. Droege leg.; WRME • 3 ♂♂; Tompkins Co., Buttermilk Falls State Park, Ithaca ; [42.41° N, 76.51° W]; 7 Oct. 1967; G. and K. Eickwort leg.; CUIC • 1 ♂; Tompkins Co., Michigan Hollow gravel pit, 5 mi. S of Danby; [42.28° N, 76.5° W]; 7 Sep. 1968; G. and K. Eickwort leg.; CUIC • 1 ♀; Tompkins Co., Six Mile Creek , SE of Ithaca Reservoir; [42.41° N, 76.45° W]; 25 May 1968; G. and K. Eickwort leg.; CUIC • 3 ♀♀; Westchester Co., Bedford ; [41.2° N, 73.64° W]; 6 Jul. 1957; G. R. Ferguson leg.; BBSL700691 , BBSL700692 , BBSL700693 • 1 ♀; Ludlowville ; [42.55° N, 76.54° W]; 6 Jun. 1968; L.L. Pechuman leg.; CUIC • 1 ♀; Montauk ; [41.03° N, 71.96° W]; 4 May 1947; R. Latham leg.; CUIC • 1 ♀; Three Mile Harbor ; [41° N, 72.18° W]; 6 Jun. 1941; R. Latham leg.; CUIC • 1 ♂; Van Cortland Park ; [40.9° N, 73.89° W]; 20 Jul. 1913; CUIC . – North Carolina • 1 ♀; Union Co.; 34.984° N, 80.449° W; Sep.–Oct. 2003; R. Jackowski leg.; PCYU USGS-DRO 023920 • 1 ♀, 6 ♂♂; Black Mountains ; [35.79° N, 82.26° W]; Aug. 1912; Beutenmüller leg.; PCYU • 1 ♀; Great Smoky Mountains National Park, Cataloochee overlook; 35.6399° N, 83.06017° W; 6 Aug. 2006; J. Gibbs leg.; GSNP • 1 ♂; Highlands ; [35.05° N, 83.2° W]; 22 Jul. 1958; T. B. Mitchell leg.; PCYU • 1 ♀; Pettigrew State Park ; [35.79° N, 76.41° W]; 27 May 1959; T. B. Mitchell leg.; PCYU . – Oklahoma • 1 ♀; Latimer Co.; [34.9° N, 95.2° W]; Jun. 2002; K. Stephan leg.; TAMU-ENTO X1419622 . – Rhode Island • 2 ♀♀; Newport Co.; 41.4969° N, 71.3678° W; 22 Jul. 2005; P. Ostenton leg.; PCYU . – South Carolina • 1 ♀; Aiken Co.; 33.3878° N, 81.6402° W; 3Aug. 2013; WRME • 1 ♀; Charleston Co., James Island; [32.74° N, 79.96° W]; 28 Jun. 1950; W.F. Chamberlain leg.; TAMU-ENTO X1399604 • 1 ♀; ibid.; 19Aug. 1950; W.F. Chamberlain leg.; TAMU-ENTO X1403433 • 1 ♀; Chesterfield Co.; 34.6367° N, 80.17584° W; 18–19 May 2006; S.W. Droege leg.; PCYU USGS-DRO 056978 • 1 ♀; Greenville Co., Greenville ; [34.85° N, 82.39° W]; 28 May 1977; R. S. Peigler leg.; ex Chestnut; TAMU-ENTO X1365240 • 1 ♀, 1 ♂; Okanee Co., near Walhalla ; 34.81283° N, 83.13679° W; 9 Aug. 2006; J. Gibbs leg.; PCYU • 1 ♀; Clemson ; [34.68° N, 82.84° W]; 16 Apr. 1950; G.M. Chamberlain leg.; TAMU-ENTO X1316445 • 1 ♀; ibid.; 1 Jul. 1952; W.F. Chamberlain leg.; TAMU-ENTO X1361346 • 2 ♀♀; Greenville ; [34.85° N, 82.39° W]; 16–31 Aug. 1981; Richard S. Peigler leg.; TAMU-ENTO X1396429, X1396695 • 1 ♀; ibid.; 1–15 Sep. 1981; Richard S. Peigler leg.; TAMU-ENTO X1396286 • 1 ♂; ibid.; 1–15 Sep. 1981; Richard S. Peigler leg.; TAMU-ENTO X1397289 . – South Dakota • 2 ♀♀; Jackson Co.; 43.6617° N, 101.7683° W; 22–23 Aug. 2011; J. Devalez leg.; PWRC USGS-DRO 266789 , 266800 . – Tennessee • 1 ♀; Rutherford Co.; 35.8275° N, 86.2912° W; 20 Jul. 2007; D. Green leg.; PCYU • 1 ♀; Rutherford Co.; 35.8197° N, 86.3159° W; 20 Jul. 2007; D. Green leg.; PCYU . – Texas • 10 ♀♀; Anderson Co., 10 mi. SW of Elkhart ; [31.52° N, 95.7° W]; 5–6 Jun. 1976; H. R. Burke leg.; TAMU-ENTO X1364860, X1365137, X1365337, X1365468, X1365770, X1366096, X1398653, X1398690, X1399047, X1400893 • 4 ♂♂; ibid.; 5–6 Jun. 1976; H. R. Burke leg.; TAMU-ENTO X1365421, X1365995, X1398573, X1399232 • 2 ♀♀; Anderson Co., Salmon ; [31.57° N, 95.5° W]; 1–15 May 1974; H. R. Burke leg.; TAMU-ENTO X1393291, X1393469 • 2 ♀♀; ibid.; 28 Apr.– 16 May 1975; H. R. Burke leg.; TAMU-ENTO X1400746, X1400818 • 5 ♀♀; ibid.; 17 May–6 Jun. 1975; H. R. Burke leg.; TAMU-ENTO X1365182, X1398531, X1399216, X1399529, X1401121 • 1 ♀; Bastrop Co., Buescher State Park ; [30.06° N, 97.17° W]; 22 Apr. 1973; J.C. Schaffner leg.; TAMU-ENTO X1391914 • 1 ♀; Bastrop Co., Camp Swift Nat. Gd. 8.6 km N of Bastrop; 30.278° N, 97.275° W; 31 Jan.– 17 Feb. 2003; J.C. Abbott leg.; CTMI • 1 ♀; Brazos Co., 0.4 mi. W of Navasota R. on S. R. 21; [30.865° N, 96.197° W]; 14 Jul. 1974; H. Greenbaum leg.; TAMU-ENTO X1311831 • 1 ♀; Brazos Co., 6.2 mi. N of Millican, FM Road 2154; [30.509° N, 96.295° W]; 19 Apr. 1975; S.J. Merritt leg.; TAMU-ENTO X1398950 • 3 ♀♀; Brazos Co., 9 km SSE of College Station, 15889 Woodlake Drive ; 30.53145° N, 96.2817° W; elev. 79 m; 22 Aug. 2013; J.D. Oswald leg.; TAMU-ENTO X1058927, X1060436, X1064907 • 1 ♀; ibid.; 23 Aug. 2013; J.D. Oswald leg.; TAMU-ENTO X1064394 • 2 ♀♀; Brazos Co., Bryan ; [30.67° N, 96.37° W]; 1–2 May 1976; H. R. Burke leg.; TAMU-ENTO X1312321, X1387324 • 2 ♂♂; ibid.; 1–2 May 1976; H. R. Burke leg.; TAMU-ENTO X1389946, X1395461 • 66 ♀♀; ibid.; 29–30 May 1976; H. R. Burke leg.; TAMU-ENTO X1364579, X1364727, X1364862, X1364898, X1365086, X1365091, X1365145, X1365146, X1365185, X1365186, X1365226, X1365234, X1365260, X1365264, X1365275, X1365316, X1365328, X1365333, X1365336, X1365346, X1365357, X1365381, X1365396, X1365409, X1365428, X1365445, X1365447, X1365454, X1365479, X1365497, X1365522, X1365526, X1365550, X1365557, X1365590, X1365622, X1365726, X1365732, X1365975, X1366118, X1398550, X1398582, X1398686, X1398695, X1398710, X1398784, X1398828, X1398842, X1398854, X1398897, X1398964, X1398997, X1399032, X1399039, X1399055, X1399079, X1399095, X1399098, X1399112, X1399231, X1399266, X1399280, X1399393, X1399466, X1399490, X1399538 • 1 ♂; ibid.; 29–30 May 1976; H. R. Burke leg.; TAMU-ENTO X1365280 • 1 ♀; Brazos Co., College Station ; [30.63° N, 96.33° W]; 25 Mar. 1975; P.H. Thompson leg.; TAMU-ENTO X1400761 • 1 ♀; ibid.; 15–22 May 1977; S.J. Merritt leg.; TAMU-ENTO X1401248 • 1 ♂; ibid.; 15–22 May 1977; S.J. Merritt leg.; TAMU-ENTO X1365943 • 1 ♀; ibid.; 25 Apr. 1979; C.W. Agnew leg.; TAMU-ENTO X1361837 • 3 ♀♀; ibid.; 27 May 1983; S.J. Merritt leg.; ex Ptilimnium sp. ; TAMU-ENTO X1392345, X1392380, X1397537 • 1 ♂; ibid.; 27 May 1983; S.J. Merritt leg.; ex Ptilimnium sp. ; TAMU-ENTO X1397304 • 2 ♀♀; Brazos Co., College Station, 1.25 mi. Highway 30 and Texas Aus. ; [30.63° N, 96.33° W]; 21 May 1981; W.P. Forrester leg.; TAMU-ENTO X1675348 , X1675426 • 1 ♀; Brazos Co., College Station, Riley Estate ; 30.58849° N, 96.25366° W; 21–26 Mar. 2011; E. Riley, M. T. leg.; TAMU-ENTO X1428048 • 1 ♀; ibid.; 21–25 Mar. 2011; E. Riley, M. T. leg.; TAMU-ENTO X1426033 • 6 ♀♀; ibid.; 1–3 Apr. 2011; E. Riley, M. T. leg.; TAMU-ENTO X1424633, X1427050, X1427409, X1428015, X1428227, X1428233 • 1 ♂; Brazos Co., near College Station, TAMU Range Sci. Area ; [30.58° N, 96.37° W]; 15 Aug. 1981; S.J. Merritt leg.; ex Eupatorium ; TAMU-ENTO X1387829 • 2 ♀♀; Brazos Co., on Highway 30 8.3 miles east of Highway 6 junction; [30.63° N, 96.213° W]; 7 May 1981; S.J. Merritt leg.; ex Bifora ; TAMU-ENTO X1398894, X1399300 • 1 ♂; Brazos Co., on Highway 30 9 miles east of Highway 6 junction; [30.623° N, 96.205° W]; 7 May 1981; S.J. Merritt leg.; ex Rudbeckia sp. ; TAMU-ENTO X1399155 • 1 ♀; Brazos Co., TAMU-Riverside Campus ; 30.64282° N, 96.49347° W; elev. 80 m; 28 Sep. 2013; K. Fryer leg.; TAMU-ENTO X1006852 • 1 ♂; ibid.; 28 Oct. 2013; K. Fryer leg.; TAMU-ENTO X0707268 • 1 ♀; Brazos Co., Turk Ranch Road 0.9 mi. SE of Duck Pond Road junction; [30.598° N, 96.218° W]; 18 Sep. 1976; S.J. Merritt leg.; ex misc. plants; TAMU-ENTO X1365368 • 1 ♂; Brazos Co.; [30.6° N, 96.3° W]; 24 Jul. 1937; J.E. Gillaspy leg.; ex cotton; TAMU-ENTO X1388245 • 1 ♀; ibid.; 16 Oct. 1954; A.H. Alex leg.; ex Aster ; TAMU-ENTO X1389426 • 1 ♀; ibid.; 26 Oct. 1954; A.H. Alex leg.; ex Aster ; TAMU-ENTO X1389257 • 1 ♀; ibid.; 30 May 1962; A.H. Alex leg.; ex Rudbeckia bicolor ; TAMU-ENTO X1388492 • 2 ♂♂; Brazos Co.; 30.59215° N, 96.27266° W; elev. 88 m; 16–23 Apr. 2017; K.W. Wright leg.; TAMU-ENTO X1533790, X1534943 • 2 ♂♂; ibid.; 30 Apr.–13 May 2017; K.W. Wright leg.; TAMU-ENTO X1533817, X1534968 • 2 ♀♀; Burleson Co., FM 50 4.4 mi. N of Clay ; [30.443° N, 96.375° W]; 5 May 1984; S.J. Merritt leg.; ex Rudbeckia sp. ; TAMU-ENTO X1395879, X1397568 • 1 ♂; Burleson Co., Highway 21 6.4 mi. NE of Caldwell; [30.595° N, 96.612° W]; 30 May 1975; S.J. Merritt leg.; TAMU-ENTO X1398605 • 1 ♀; Burleson Co., Highway 50 1.8 mi. N of Highway 60 junction; [30.557° N, 96.47° W]; 30 May 1975; S.J. Merritt leg.; TAMU-ENTO X1400901 • 1 ♀; Caldwell Co., Luling ; [29.68° N, 97.65° W]; 27 Sep. 1965; G.E. Bohart leg.; BBSL700707 • 1 ♀; Colorado Co.; [29.6° N, 96.5° W]; 30 Mar. 1922; Mrs. Grace Wiley leg.; SEMC • 1 ♀; Denton Co.; 33.2043° N, 97.0816° W; 27 Apr. 2002; H.W. Ikerd leg.; PCYU USGS-DRO 012240 • 1 ♀; ibid.; 27 Apr. ; H.W. Ikerd leg.; PCYU USGS-DRO 004904 • 1 ♀; ibid.; 27 Apr. ; H.W. Ikerd leg.; PCYU USGS-DRO 004921 • 1 ♀; Fayette Co., Carmine ; [30.15° N, 96.69° W]; 27 May 2015; P. Rude leg.; EMEC • 1 ♀; Harrison Co., Karnack ; [32.67° N, 94.17° W]; 31 May 1998; W.F. Chamberlain leg.; TAMU-ENTO X1395791 • 1 ♀; Houston Co., Eastham Prison Unit ; [30.98° N, 95.63° W]; 21 May 1971; DEVAC Crew leg.; ex cotton; TAMU-ENTO X1388349 • 1 ♀; Kaufman Co., 10.4 km NE of Forney ; 32.7934° N, 96.3765° W; 12 Oct.–30 Nov. 2014; Brandon Hays leg.; TAMU-ENTO X1445683 • 1 ♀; Lamar Co., Camp Maxey malaise in Equisetum bog; [33.8° N, 95.56° W]; 21 May–Jun. 2004; Godwin leg.; CTMI • 1 ♀; Lavaca Co., 15 mi. S of Halletsville ; [29.22° N, 96.97° W]; 28 Sep. 1965; G.E. Bohart leg.; ex Croton ; BBSL700710 • 1 ♀; Robertson Co., 12.1 mi. NE of junction of Highway 6 and OSR; [30.87° N, 96.31° W]; 15 Jun. 1975; S.J. Merritt leg.; TAMU-ENTO X1400889 • 1 ♂; Robertson Co., 12.1 miles east of Highways 6 and OSR junction; [30.75° N, 96.25° W]; 4 Jun. 1977; S.J. Merritt leg.; ex Rudbeckia sp. ; TAMU-ENTO X1396753 • 1 ♀; Robertson Co., 13.9 miles east of junction of Highways 6 and OSR; [30.75° N, 96.22° W]; 11 Jun. 1977; S.J. Merritt leg.; ex Monarda ; TAMU-ENTO X1395660 • 1 ♀; Robertson Co., 20.8 mi. NW of junction of Highways OSR and FM 46 ; [31.1° N, 96.62° W]; 14 Jun. 1975; S.J. Merritt leg.; TAMU-ENTO X1365588 • 1 ♀; Robertson Co., 4.4 mi. NE of junction of Highways 6 and OSR; [30.79° N, 96.4° W]; 14 Jun. 1975; S.J. Merritt leg.; TAMU-ENTO X1365512 • 1 ♀; Robertson Co., on FM 46 2.2 miles south of Franklin ; [31.005° N, 96.46° W]; 18 Jul. 1981; S.J. Merritt leg.; ex Cassia sp. ; TAMU-ENTO X1397350 • 3 ♂♂; Robertson Co., Salter Research Farms ; 31.0333° N, 96.7725° W; elev. 88 m; 21 Apr. 2017; K. Wright leg.; ex Lupinus texensis ; TAMU-ENTO X1533735, X1533737, X1533741 • 2 ♀♀; Walker Co., Ellis Prison ; [30.88° N, 95.46° W]; 18 Jul. 1977; W.L. Sterling leg.; TAMU-ENTO X1365443, X1399148 • 1 ♀; ibid.; 27 Jul. 1977; W.L. Sterling leg.; TAMU-ENTO X1395612 • 1 ♀; ibid.; 29 Jul. 1977; W.L. Sterling leg.; TAMU-ENTO X1366174 • 1 ♀; ibid.; 19–23 Sep. 1977; W.L. Sterling leg.; TAMU-ENTO X1402078 • 1 ♀; ibid.; 26 Oct. 1977; W.L. Sterling leg.; TAMU-ENTO X1405812 • 1 ♀; College Station ; [30.63° N, 96.33° W]; 14 Mar. 1920; TAMU-ENTO X1387651 • 1 ♀; ibid.; 5 Jun. 1955; A.H. Alex leg.; ex Leucophyllum frutescens ; TAMU-ENTO X1389501 • 2 ♂♂; ibid.; 24 Jun. 1962; A.H. Alex leg.; ex Mentha sp. ; TAMU-ENTO X1311772, X1386336 • 2 ♂♂; ibid.; 15 Jun. 1963; A.H. Alex leg.; ex Melilotus alba ; TAMU-ENTO X1399872, X1399904 • 2 ♂♂; ibid.; 16 Jun. 1963; A.H. Alex leg.; ex Melilotus alba ; TAMU-ENTO X1312790, X1399955 • 1 ♀; Livingston Lake State Park ; 30.66° N, 95° W; 28 May 2015; P. Rude leg.; EMEC • 1 ♀; Rockport ; [28.02° N, 97.06° W]; 23 Mar. 1981; W.F. Chamberlain leg.; TAMU-ENTO X1405250 • 1 ♀; San Antonio ; [29.42° N, 98.49° W]; 29 Aug. 1964; A.H. Alex leg.; ex Helianthus annuus ; TAMU-ENTO X1400773 • 1 ♂; Taylor ; [30.57° N, 97.41° W]; 3 Jun. 1935; J.E. Gillaspy leg.; TAMU-ENTO X1388917 . – Virginia • 1 ♀; Accomack Co.; 37.9377° N, 75.3177° W; 30 Jun.–1 Jul. 2006; S.W. Droege leg.; PCYU USGS-DRO 059595 • 2 ♀♀; Clarke Co., Blandy Experimental Farm S of Boyce; [39.06° N, 78.06° W]; 12–14 Jun. 1986; J.K. Liebherr leg.; CUIC • 1 ♀; Fluvanna Co.; 37.753° N, 78.162° W; 2 Oct. 2004; S.W. Droege leg.; PCYU • 1 ♀; Assateague Island; 37.9576° N, 75.3147° W; 30 Jun.–1 Jul. 2006; S.W. Droege leg.; PCYU USGS-DRO 059936 • 3 ♀♀; Assateague Island; 37.9625° N, 75.3108° W; 30 Jun.–1 Jul. 2006; S.W. Droege leg.; PCYU USGS-DRO 059443 , 059450 , 059454 • 1 ♀; Highway 340 10 km N of Shenandoah; 38.564° N, 78.606° W; 7 Jun. 2005; A. Zayed leg.; PCYU • 1 ♀; Virginia Beach ; [36.85° N, 76° W]; 16–17 Jun. 2007; W. Steiner leg.; PCYU . – West Virginia • 2 ♀♀; Hampshire Co.; 39.3314° N, 78.46° W; 24 May 2003; S.W. Droege leg.; BBSL USGS-DRO 018461 , 018469 • 1 ♂; Hampshire Co.; 39.4183° N, 78.5799° W; 7 Jul. 2002; S.W. Droege leg.; PCYU USGS-DRO 007348 • 1 ♂; Hampshire Co.; 39.2334° N, 78.6843° W; 11 Jul. 2002; S.W. Droege leg.; PCYU USGS-DRO 003053 • 2 ♀♀; Hampshire Co.; 39.34575° N, 78.4026° W; 29–30 May 2004; S.W. Droege leg.; PCYU USGS-DRO 032806 , 032813 • 1 ♀; Hampshire Co.; 39.35096° N, 78.5087° W; 29–30 May 2004; S.W. Droege leg.; PCYU USGS-DRO 032567 .

Range

Eastern United States and Canada ( Fig. 72 ).

Floral hosts

APIACEAE : Bifora Hoffm. • Ptilimnium Raf. • ASTERACEAE : Aster • Eupatorium L. • Helianthus : H. annuus • Rudbeckia : R. bicolor Nutt. • BRASSICACEAE : Physaria : P. filiformis (Rollins) O’Kane & Al-Shehbaz • EUPHORBIACEAE : Croton • FABACEAE : Cassia • Lupinus : L. texensis • Melilotus : M. officinalis : M. o. subsp. alba • FAGACEAE Dumort. : Castanea Mill. • LAMIACEAE : Mentha • Monarda • MALVACEAE : Gossypium • SCROPHULARIACEAE : Leucophyllum : L. frutescens .

DNA barcodes

Twenty-three confirmed sequences available (BOLD process IDs: DIAL091-06, DIAL485-06, DIAL490- 06, DIAL491-06, DIAL493-06, DIAL495-06, DIAL518-06, DIAL683-06, DIAL684-06, DIAL742-06, DIAL743-06, DIAL744-06, DIAL745-06, DIAL824-06, DIAL1050-06, DIAL1051-06, DLII061-06, DLII468-07, DLII1300-08, DLII1331-08, DLII1356-08, DLII1545-09, LASNA006-08). There is a large amount of divergence within these sequences (1.58% maximum intraspecific p-distance). They are closest in terms of p-distance to L. puteulanum (0.31% minimum interspecific p-distance). No fixed nucleotide substitutions distinguish L. tegulare from all other species of the L. gemmatum complex or closely related species.

Comments

Robertson (1890) included Montana, California , and Mexico specimens in the type series. These must constitute other species in the L. gemmatum complex, but were not examined in this study. Cresson (1928) subsequently designated a Connecticut specimen from the type series as the name-bearing type.

Figures

Fig. 70. Lasioglossum (D.) tegulare (Robertson, 1890), ♀. A. Dorsal habitus. B. Lateral habitus. C. Face. D. Metasoma. Scale bars = 1 mm.

Fig. 71. Lasioglossum (D.) tegulare (Robertson, 1890), ♂ (TAMU). A. Dorsal habitus. B. Lateral habitus. C. Face. D. Metasoma. Scale bars = 1 mm.

Fig. 72. Georeferenced collection records of Lasioglossum (D.) tegulare (Robertson, 1890) (black squares) and predicted distribution by maximum entropy ecological niche modelling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.

Fig. 83. Mesonotum. A. Lasioglossum gloriosum sp. nov., ♀, with dense tomentum on metanotum and margins of mesoscutum. B. L. tegulare (Robertson, 1890), ♀, with sparse tomentum. Scale bars = 0.5 mm.

Fig. 85. Metasomal terga. A. Lasioglossum coactus (Cresson, 1872), ♀, with T2–T3 each slightly convex and apical rim downcurved in lateral view.B. L. tegulare (Robertson, 1890), ♀, with T2–T3 each flat and apical rim continuous with contour of disc in lateral view. Scale bars = 0.5 mm.

Fig. 98. Mesepisternum. A. Lasioglossum diabolicum sp. nov., ♀, shiny with distinct round punctures. B. L. tegulare (Robertson, 1890), ♀, dull and rugulose. Scale bars = 0.5 mm.

Fig. 101. Face. A. Lasioglossum puteulanum Gibbs, 2009, ♀, slightly longer. B. L. tegulare (Robertson, 1890), ♀, slightly shorter. Scale bars = 1 mm.

Fig. 118. Face. A. Lasioglossum puteulanum Gibbs, 2009, ♂, slightly longer. B. L. tegulare (Robertson, 1890), ♂, slightly shorter. Scale bars = 1 mm.

Fig. 117. T2. A. Lasioglossum egulare (Robertson, 1890), ♂, with dense punctures up to premarginal line sharply contrasting with impunctate apical rim. B. L. diabolicum sp. nov., ♂, with punctures becoming more sparsely punctate near and on premarginal line and not sharply contrasting with apical rim. Scale bars = 0.5 mm.