138 THE CANADIAN ENTOMOLOGIST 



of abdomen with very long, erect hair, white basally, but mainly 

 black on apical half. 



Chubut, Patagonia (from W. F. H. Rosenberg), U. S. Nat. 

 Museum. In Friese's table of Chilean and Argentine CoUetes 

 this falls nearest to C. biciliatus Friese {ciliatus Friese, preocc), 

 from Chile, but it appears to be certainly distinct. Unfortunately 

 Friese gives no detailed account of the male of biciliatus. In the 

 North American fauna it falls nearest to C. productus, except for 

 the colour of the abdomen. 



Colletes rufosignatus, sp. n. 



cf. — Length about 8 mm., anterior wing 5.5 mm.; black, the 

 hind margins of abdominal segments obscurely brown, and apical 

 tarsal joints dull ferruginous; malar space long, but less than 

 twice as long as wide; mandibles red at apex; labrum smooth and 

 shining, without distinct plicse or pits; clypeus shining, sparsely 

 punctured; antenna? black, only moderately long, but middle 

 joints longer than broad; third joint 270 microns long, fourth 320, 

 fifth 305; hair of head and thorax long, mainly dull white with a 

 faint creamy tint, but some long, black hairs at sides of face, and 

 more or less fuscous on vertex, while the hair on the scutellum is 

 light orange-ferruginous; mesothorax shining, finely but not 

 densely punctured; area of metathorax at base with plica; bounding 

 a series of pits, below this rugose, but with the lower end of the 

 triangle smooth, the smooth area bounded above by a tuft of erect 

 hair; teguhr black; wings hyaline; nervures and stigma piceous; 

 legs with white hair; on middle and hind tarsi the tufts of hair at 

 ends of joints are reddish; abdomen shining, with minute, weak 

 punctures, and long, thin, erect hair, white basally, largely black 

 apically, but no hair-bands. 



Chubut, Patagonia (from W. F. H. Rosenberg), U. S. National 

 Museum. Allied to C. patagonicus Schrottky and C. rhodaspis 

 Ckll., but apparently not the male of either. The colour of the 

 scutellar hair suggests patagoniciis, but that insect, at least in the 

 female, has the other hair much darker. 



Coelioxys bruneri, sp. n. 



cf . — Length 8.2 mm.; black, with the first al)dominal tergite 

 entirely, the middle third of second and a smaller area on third, 

 bright ferruginous; legs red, black basally (including part of 



