142 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 part 3 



cous above; flagellum black, with a white band; propleurum ivory 

 except for fuscous basolateral mark; pronotum ivory except in scrobe; 

 mesonotum black, a median spot on mesoscutum and the scutellum 

 ivory; postscutellum and tegula ivory; mesosternum and mesopleurum 

 ivory except that part of prepectus and a mark beginning just below 

 subtegular ridge and curving below speculum are fuscoug; metapleu- 

 rum ivory, anteriorly fulvous, fuscous near its front edge; upper 

 division of metapleurum ivory; propodeum black basad of basal carina, 

 mostly fulvous between basal and apical carinae, and ivory near and 

 apicad of apical carina; front and middle coxae and trochanters 

 ivory; front and middle legs beyond trochanters pale fulvous, their 

 tarsi infuscate apically; hind coxa fulvous, with a longitudinal fuscous 

 stripe above and with a posterior dorsoapical whitish area; first hind 

 trochanter fuscous, fulvous apically; second hind trochanter and 

 hind femur fulvous; hind tibia fulvous, its apical 0.3 ± infuscate; 

 hind tarsus white, the basal 0.2 ± of its first segment and apical 

 0.7 ± of its last segment fuscous; abdomen fulvous, the subbasal 

 0.5 ± of first tergite, basal 0.3 ± of second tergite, and often basal 

 0.1 ± of third tergite more or less infuscate. 



Female : Head varying from mostly ivory with median part of frons 

 and occiput except eyes black, to entirely black except for whitish 

 orbital marks on face, occiput, and temple; mandible usually ferrugi- 

 nous and fuscous, sometimes partly whitish; palpi white; scape and 

 pedicel fulvous or light brown, fuscous above ; flagellum black, with 

 a broad white band; propleurum black; pronotum black or more or 

 less fulvous, more or less of its upper margin and usually some or all 

 of its lower margin whitish; mesonotum and metanotum ferruginous, 

 with black sutural markings and the postscutellum and apex of 

 scutellum usually whitish; tegula pale fulvous to brown; subtegular 

 ridge yellow or fulvous; rest of thorax ferruginous except often for 

 some restricted fuscous areas; coxae ferruginous, much or all of 

 front coxa and dorsoapical area on middle and hind coxae usually 

 infuscate; trochanters ferruginous, the first trochanter often infuscate 

 basally and the second trochanter of front and middle legs partly 

 yellowish; femora and tibiae ferruginous, the apical 0.2 ± of hind 

 tibia usually somewhat infuscate; front and middle tarsi ferruginous; 

 hind tarsus pale j^ellowish, the basal 0.4 ± of its first segment, all 

 of fourth and fifth segments, and none to all of third segment fer- 

 ruginous; abdomen ferruginous. 



Type: 9, Midland Co., Mich., Aug. 11, 1940, R. R. Dreisbach 

 (Washington, USNM 63765). 



Paratypes (31 cf, 319): From Michigan (Alcona Co., Alpena Co., 

 Alto, Ann Arbor, Antrim Co., Cheboygan Co., Clare Co., Dicldnson 

 Co., East Lansing, Gladwin Co., Huron Co., Isabella Co., Lake Co., 



