12 THE CANADIAN ENTOMOLOGIST. 



yellowish pollinose; venter entirely yellow. Legs yellow, coxse 

 blackish, halteres yellow. Wings brownish, slightly darker in the 

 middle and along the fifth longitudinal vein; veins and costal cells 

 yellow, basal half of the marginal cell white, the greater portion of 

 the first and second basal cells noticeably lighter than the rest of 

 the wing. Length, 12 mm. 



9 . — Face, front and occiput covered with a dense brown 

 pollen, the front about one-fourth the total width of the head, with 

 five grooves above the base of the antenna?, the four outer ones 

 slightly diverging below, above fusing and deflecting towards the 

 ocelli, the middle one obsoletely divided into three smaller ones 

 below the ocelli. The thoracic stripes are more prominent and a 

 brighter yellow than in the male; scutellum velvety-brown, with 

 three transverse ridges. The abdomen is shining and brownish 

 black, with the posterior pollinose bands on the first, second and 

 third segments, broadly interrupted. Length, 14 mm. 



Three specimens, Beulah, Manitoba, received from Mr. C. T. 

 Brues. Holotype and allotype in the author's collection. Para- 

 type in the Museum Comparative Zoology, Cambridge, Mass.; 

 "Hill City, So. Dakota" (Townsend). 



This interesting species has the thick heavy form of Ccenomyia, 

 but the generic characters are those of Arthropeas, except that the 

 anal cell is narrowly open. It seems to more clearly show the 

 relationship of the two genera than the other species. 



TWO NEW CANADIAN BEES. 



BY T. D. A. COCKERELL, BOULDER, COLORADO. 



Sphe codes hiidsoni, n. sp. 

 9. Length about 7 mm.; head and thorax black, legs dark 

 rufo-fuscous, abdomen entirely clear yellowish-ferruginous; head 

 broader than long, face very broad, thinly covered (including the 

 clypeus) with fine pale hair; mandibles bidentate, the apical half 

 dark chestnut-red, the inner tooth short and rounded, about 208/^ 

 from apex of mandible; process of labrum very broad, shallow- 

 ly depressed or subemarginate in middle; only the first three 

 points of the flagellum remain in the types, but they are dull ferru- 

 ginous beneath; clypeus strongly punctured; front extremely, 

 densely and minutely punctured in middle, not quite so densely 

 at sides, the punctures are so small as to be hard tosee with ahand 

 lens; mesothorax brilliantly shining, with scattered punctures, the 

 median sulcus well marked; pleura, beneath the wings, with a 

 large shining raised area, the pleura below this Avith fine 

 close ruga?; area of metathorax large, fully 320/^ long, with about 

 20 coarse rngx, the lateral ones parallel, radiating, the middle ones 



