248 U. S. NATIONAL MUSEUM BULLETIN 216 



on the sides; basal four segments of hind tarsus whitish with their 

 apex fuscous; fifth segment of hind tarsus fuscous, its base pale. 



Female: Black. Apical half of clypeus, median part of mandible, 

 and flagellum dark brown; palpi whitish; tegula and hind corner of 

 pronotum white; scutellum, mesosternum and lower 0.6 ± of meso- 

 pleurum usually fulvoferruginous, but sometimes these are largely or 

 entirely black; front leg fulvous, its trochanters and apex of its coxa 

 pale fulvous, the apex of its femur, upper side of its tibia, and basal 

 half of its basitarsus whitish; hind coxa, trochanters, and femur 

 fulvous, the femur with a faint preapical infuscation and its extreme 

 apex stramineous; hind tibia whitish, its apical 0.25 and under side 

 blackish brown, subbasally the dark color on the basal side extended 

 dorsally a little to suggest or sometimes to complete a narrow sub- 

 basal band; basal three segments of hind tarsus whitish, their apex 

 broadly fuscous; apical two segments of hind tarsus fuscous; colora- 

 tion of middle leg similar to that of hind leg but the darker areas 

 only weakly infuscate. 



Specimens (8c?, 919): From Alberta (Waterton) ; British Columbia 

 (Salmon Arm); Colorado (Phantom Valley in Rocky Mountain 

 National Park at 9,400 ft.); Maine (Casco); Massachusetts (Beverly 

 and Holliston); Michigan (Brevort, Douglas Lake, Leelanau Co., 

 Midland Co., Muskegon Co., Oceana Co., Owosso, Schoolcraft Co., 

 Tuscola Co., and Twin Lakes in Houghton Co.); Minnesota (Big- 

 Stone Co. and Lake Independence in Hennepin Co.); New Brunswick 

 (Jacquet River, Red Head at St. John, and Pokemouche); New 

 Hampshire (Mount Washington) ; New York (Bluff Island near Clay- 

 ton, Derby, Hancock, Ithaca, McLean Bogs Reserve in Tompkins 

 Co., North Fairhaven, Oswego, Otsego Lake, and between Slaterville 

 and Ellis); Nova Scotia (Annapolis); Ohio (Columbus); Ontario 

 (Blackburn, Fishers Glen, Hastings Co., Kearney, Leamington, Mar- 

 mora, Muskoka District, Orillia, Ottawa, Parr Island in East Spence 

 Lake, Smoky Falls on the Mattagami River, Southampton, Thunder 

 Bay Beach, and Trenton); Oregon (Hood River and Springfield); 

 Pennsylvania (Lake Pleasant in Erie Co., Presque Isle in Erie Co., 

 and Spring Brook); Quebec (Cascapedia, Fulford, Knowlton, Lac 

 Mercier, and Nominingue); Rhode Island (Westerly); Saskatchewan 

 (Prince Albert National Park); and Wisconsin (Dane Co.). 



Collecting dates are distributed from late spring to early fall. Par- 

 ticularly early and late dates of capture are: May 25 in Tuscola Co., 

 Mich.; May 30 at Leamington, Ont., and at Ottawa, Ont.; June 3 at 

 Westerly, R. I.; June 4 at Nominingue, Que.; June 5 at Thunder 

 Bay Beach, Ont. ; September 5 at Ottawa, Ont. ; September 6 at Derby, 

 N. Y. ; September 13 and 15 at Trenton, Ont.; and October 1 at 

 Annapolis, N. S. Two of the specimens were taken at light. 



