THH: CANADIAN ENrOMOLOGISr. 163 



of metatliorax semicircular, well defined, well plicate basally, otherwise 

 with irregular raised lines, forming a few polygonal areas : basal nervure 

 tailing short of transverso-medial ; fifth and sixth abdominal segments 

 ■darkened ; first segment with very sparse punctures, irregularly scattered, 

 some large, some microscopical, the effect reminding one of the stars in 

 the sky ; basal half of second segment with numerous very distinct 

 punctures, and minute (microscopical) ones scattered between ; third 

 segment hairy, with numerous minute piliferous punctures. 



Hab. — Prospect Lake, Colorado Springs, Colo., May 22, 1904. 

 (T. I). A. .K: \V. P. Ckll ) 



CoUetes salicicola, Ckll., subsp. geranii, now — - ,$ . Compared with 

 female salicicola (the only sex known) from Las Cruces, N, M., gerajiii 

 shows the greatest similarity, only the following differences being such as 

 might not well- be merely sexual : malar space longer, being about or 

 nearly as long as broad ; first recurrent nervure joining the very broad 

 second submarginal cell at or a little beyond its middle (conspicuously 

 beyond in salicicola) ; ciypeus with very close small punctures in the 

 middle above ; sides of apical triangle of metathorax (below the transverse 

 ridge) wholly without the definite fine' raised lines of salicicola ; first 

 abdominal segment more strongly punctured. The abundant white hair 

 is as in salicicola. Flagelluin long, very dark reddish, nearly black ; 

 stigma ferruginous ; no black hair anywhere ; legs black, only the claws 

 and ends of claw-joints ferruginous : labrum with a median pit. Length 

 8 mm. 



In my table in Psyche, 1905? it runs to C. gaudialis, but differs by 

 the colour of the stigma and thoracic hair. It does not agree with any- 

 thing in Robertson's table ; it runs first to 4, and then on to 5, though 

 joint 4 is not quite as long as 2 + 3, then on to 10, where it could only 

 be compared with C. productus, but the punctures of the scutellum are 

 similar to those of the mesothorax, and the teguh« are clear testaceous 

 (black in productus). 



Hab. — Boulder, Colo. (W. P. Cockerell. ) Five males, June 10 to 

 27 : one at flowers of wild Geranium. 



Colleies Tucsonensis, n. sp. — $. Tucson, Ariz., Nov. 7. (Cockerell.) 

 Length nearly 9 mm.; exceedingly like C. salicicola gera?iii, but differing 

 thus : malar space shorter, distinctly broader than long ; labrum with 

 three broad grooves or sulci ; punctures of mesothorax rather larger ; 

 abdomen broader, the punctures of the first segment sparser. The white 



