Ptilothrix bombiformis Cresson, 1878

Florez-Gomez, Nathalia & Danforth, Bryan, 2023, The North American bees of the genus Ptilothrix Cresson, 1878 (Hymenoptera, Apidae, Emphorini), with the description of two new species, Journal of Hymenoptera Research 95, pp. 275-293 : 275

publication ID

https://dx.doi.org/10.3897/jhr.95.96025

publication LSID

lsid:zoobank.org:pub:55CB05E0-743C-4CDB-BD29-3D114676F090

persistent identifier

https://treatment.plazi.org/id/16E00701-D62A-5A12-B9BE-DA3BFB171F51

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Ptilothrix bombiformis Cresson, 1878
status

 

Ptilothrix bombiformis Cresson, 1878 View in CoL View at ENA

Figs 5 View Figure 5 , 6G, H View Figure 6 , 7G, H View Figure 7 , 8 View Figure 8

Emphor bombiformis Cresson, 1878.

Emphor fuscojubatus Cockerell, 1913.

Ptilothrix bombiformis Cresson, (1878). (Lectotype: ANSP #f: Kansas, Snow).

Diagnosis.

Large bees, female body size from 13.5-19 mm, males from 12.5-18.6 mm. This species is clearly recognizable by the white to pale yellow pubescence on the head and mesosoma, and entirely black metasoma, except T1 which has whitish pubescence on the lateral sides in some specimens. Differs from P. sumichrasti , P. chiricahua and P. zacateca by the absence of yellowish metasomal bands, darkened wings, entirely black scopa, and overall larger size. First flagellomere length twice its apical width, as in other Ptilothrix species except P. sumichrasti and P. chiricahua . Shape of male S7, S8 and genital capsule as shown in Figs 2G, H View Figure 2 , 3G, H View Figure 3 .

Material examined.

United States of America - Alabama • 1 ♂; Morgan ; 34.6059°N, 86.9833°W; alt 178 m GoogleMaps ; Aug.1944; GE Bohart leg.; BBSL 511531 • 2 ♀; Houston, Cowarts ; 31.2°N, 85.3047°W, 1 Aug. 1916;> AMNH 00260371 to 00260372 GoogleMaps . - Arkansas • 1 ♂; Monroe, Cotton Plant , 5.4 mi SWbS; 34.9327°N, 91.2726°W; alt. 54 m GoogleMaps ; 21 Jul. 2015; P.L. Stephenson leg.; BBSL 1027862 • 1 ♂; same data as for preceding; BBSL 1027868 GoogleMaps 1 ♀; Prairie Des Arc, 6.8 mi SE, Cache River NWR; 34.9231°N, 91.3959°W; alt. 50 m GoogleMaps ; 24 Jun. 2015; P.L. Stephenson leg.; BBSL 1027864 • 1 ♂; same data as for preceding; BBSL 1027863 GoogleMaps 1 ♂; Monroe, Brinkley , 7.6 mi SW; 34.8521°N, 91.3242°W; alt. 49 m. GoogleMaps ; 16 Jul. 2015; PL Stephenson leg.; BBSL 1027865 • 1 ♂; same data as for preceding; BBSL 1027867 GoogleMaps 1 ♂; St. Charles, 4.4 mi SWbS; White River NWR. 55 m. 34.3117, -91.1213. 24-VII-2015. P.L. Stephenson; BBSL 102786. - Illinois • 13 ♂; Calhoun, Two Rivers NWR, HQ TI3S-RIW-S. 16; 38.94888°N, 90.5889°W; 2 Jul. 2012; B Loges leg.;> AMNH 00260559 to 00260571 GoogleMaps - Indiana • 1 ♀; Ripley, Friendship ; 38.9703°N, 85.1477°W, alt. 194 m GoogleMaps ; on Hibiscus syriacus ; 29 Jul. 1950; LW Chandler leg.; BBSL 511562 - Iowa • 2 ♂; Louisa, Port Louisa NWR (HSB6) Rush Lake Rd. ; 41.22°N, 91.12°W; 3 Jul. 2012; J Young;> AMNH 00260557 to 00260558 GoogleMaps - Kansas • 1 ♂; Crawford Pittsburg, 404 West Jefferson Street ; 37.40049°N, 94.7119°W; alt. 286 m GoogleMaps ; on Hibiscus syriacus ; 14 Jun. 2010; BBSL 1046881 • 1 ♀; same data as for preceding; 15 Jul. 2003; BBSL 1046887 GoogleMaps 2 ♂; same data as for preceding; 15 Jul. 2003; BBSL 1046885 to 1046886 GoogleMaps 2 ♂; Crawford, Pittsburg ; 37.41092°N, 94.6993°W; alt. 283 m GoogleMaps ; on Hibiscus sp.; 20 Jul. 2003; BBSL 1046882 to 1046883 • 2 ♀; Douglas, Lawrence, Mary's Lake ; 38.9284°N, 95.2171°W; alt. 253 m GoogleMaps ; 8 Aug. 1996; B Alexander leg.; BBSL 207987 to 207988 - Kentucky • 1 ♂; Franklin, Frankfort, Lakeview Park ; 38.21638°N, 84.8303°W; alt. 231 m GoogleMaps ; 25 Jul. 1999; DM Gordon leg.; on Helianthus sp.; BBSL 1047096 • 2 ♀; same data as for preceding; on Ipomoea sp.; 16-19 Jul. 2000; BBSL 1047109 to 1047110 GoogleMaps 7 ♂; same data as for preceding; BBSL 1047097 to 1047106 GoogleMaps 2 ♀; Franklin. Frankfort, 504 Piaute Trail ; 38.2149°N, 84.8362°W; alt. 227 m GoogleMaps ; 1 Jun 1999; DM Gordon leg.; BBSL 1047111 to 1047112 - Louisiana • 2 ♀; Saint Tammany, Abita Creek Preserve; 30.517°N, 89.967°W; 07 Aug. 2002; D Prowell leg.; on Hibiscus aculeatus ; BBSL 664704 to 664705 GoogleMaps 2 ♂; same data as for preceding; BBSL 664706 to 664707 GoogleMaps - Mississippi • 1 ♀; Pearl River, Poplarville ; 30.84°N, 89.5342°W; alt. 102 m GoogleMaps ; 18 Aug.1998; B Sampson leg.; on Hibiscus cannabinus ; BBSL 511533 - Virginia • 1 ♀; Warren ; 39.006°N, 78.071°W; alt. 159 m GoogleMaps ; 03 Aug. 2014; E Bodnar; BBSL 1096111.

Comments.

This species is the most widely distributed in North America, its geographical range from Ontario, Canada ( Sharkey et al. 2020) to South Texas and Florida (Fig. 5 View Figure 5 ). It is mainly associated to flowers of Hibiscus , although occasionally visits species of Ipomoea . It is active mid- to late summer.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Apidae

Genus

Ptilothrix

Loc

Ptilothrix bombiformis Cresson, 1878

Florez-Gomez, Nathalia & Danforth, Bryan 2023
2023
Loc

Emphor fuscojubatus

Cockerell 1913
1913
Loc

Ptilothrix bombiformis

Cresson 1878
1878