52 PROCEEDINGS OF THE ACADEMY OF [1898. 



ing, with large well-separated punctures; postscutellum rough and 

 dull ; base of metathorax pitted, shining, lateral faces tolerably 

 shiny; tegulaj piceous ; wings dull hyaline, noticeably pubescent, 

 nervures and stigma piceous ; stigma small, marginal cell appendi- 

 culate; legs black, first two joints of hind tarsus rather broad; 

 pubescence of femora yellowish-white, of tibia black, of tarsi black 

 without and pale reddish-brown within ; abdomen shining, strongly 

 but not very closely punctured, the hind-margins of the segments with 

 rather thin yellowish-white hair-bands, the surface of the first two 

 segments with long erect thin yellowish-white pubescence, that of 

 the remaining segments with shorter black pubescence. 



9 . — Much like that of armata in general appearance, but the 

 pubescence of the head, pleura and legs is entirely black, contrasting 

 with that of the thoracic dorsum, which is yellowish-white, not at all 

 mixed with black. The abdomen has no bands, but is thinly clothed 

 with rather short and inconspicuous hair, yellowish-white on the 

 first segment, black on all the rest. The first segment has its lateral 

 hind margins narrowly fringed with short dense white hair ; the 

 punctures on the second segment are of two sizes, large and small. 

 Antenna? dark, the flagellum with only the faintest chocolate tinge 

 beneath, first joint of flagellum not quite as long as the second and 

 third together. The second recurrent nervure is less bent than 

 usual in the genus. 



Hab.—V-^co, Wash., 3 ? , 4 $ , May 25, 1896 (T. Kincaid). The 

 females might be mistaken for some Andrena allied to vicina. C. 

 pascoensis approaches nearest to the descriptions of C. californica and 

 C. consors. From consors Cress., it differs in the pallid pubescence 

 and the black hair as described ; this relates to the $ , the 9 of 

 consors being unknown. From californica Prov., it differs by the 

 entirely black hair of the head and legs in the 9 . It may be added, 

 that pascoensis is also decidedly larger than consors or californica. 



Colletes kincaidii n. sp. 



9 . — Length aboutl3 mm., black, with clear fulvous pubescenceon 

 head and thorax, tolerably dense, nowhere mixed with black, becom- 

 ing whitish on the ventral surface. Head rather broad, vertex with 

 irregularly-placed punctures of various sizes, clypeus with the 

 punctures running into strise, labrum with conspicuous grooves 

 alternating with ridges, mandibles dark, space between eye and 

 base of mandible broader than long, antennae very short, wholly 

 black ; prothoracic spire short, hidden by the pubescence ; meso- 



