342 PROCEEDINGS OF THE ACADEMY OF [1897. 



sembles a good deal in color and form 0. cerasi from New Mexico, 

 but it is smaller than that; the thoracic pubescence is by no means 

 so bright, and the dorsal abdominal pubescence of cerasi is entirely- 

 black, except on the first segment, where it is pale fulvous, usually 

 mixed with black. 



Osmia propinqua Cresson, 1864. 



I have before me 8 females, sent by Mr. T. Kincaid ; two from 

 Seattle, Wash., May 11 and 14, 1897, on Rubus ursinus; one from 

 Comas I., Wash., June 18, 1896, collected by N. L. Gardner; five 

 from Olympia, Wash., May 9 and 23, and June 1 and 2. 



Osmia subornata n. sp. 



9 . Length 14 mm., stoutly built, rather shiny, pure black; head 

 large, subquadrate, abdomen short and broad; pubescence of face 

 and vertex entirely black, with sometimes a few pale hairs about the 

 insertion of the antennas, of cheeks and pleura dark griseofuscous to 

 almost black, of thoracic dorsum black on disc, with a pale band be- 

 fore and behind, the anterior band not very distinct, reaching from 

 tubercle to tubercle, the posterior occupying the scutellum, and very 

 distinct, but having black hairs intermixed. The color of these 

 hair-bands is very pale ochraceous. A tuft of pale ochraceous hairs 

 behind the wings. Pubescence of legs entirely black, or a little 

 fuscous on anterior basis. Pubescence of abdominal dorsum black, 

 some rather obscure pale hairs on sides of first segment, and the 

 apex always noticeably clothed with appressed pale pubescence. 

 Ventral scopa entirely black. Punctuation strong, but rather sparse 

 for an Osmia. Inner orbits carinate; clypeus produced and very 

 broadly truncate ; mandibles very broad ; tegulae black ; tvings pale 

 fuscous, second submarginal cell about as long as first on cubital 

 nervure ; first recurrent nervure reaching second submarginal cell 

 a little before the end of the basal third, second near the tip ; spurs 

 of hind tibiae stout and curved at tips. 



Hub.— Olympia, Wash., June 1, 2 and 12 (T. Kincaid). This is 

 a submelanic representative of 0. bucephala and 0. megacephala, 

 having the same general structure and appearance. There is, how- 

 ever, no blue or green tint, and the pubescence is more black, and 

 the wings are quite dark. The apical tooth of the mandibles is 

 short. 



Osmia pascoensis n. sp. 



9. Length about 15 mm., stoutly built; black, the abdomen 

 with a perceptible blue tinge. Head large, but not so large as 



