THE CANADIAN ENTOMOLOGIST. 97 



densely-punctLired and sparsely pubescent mesothorax ; from Gilensis by 

 its mtich smaller size ; from niuiiis by the polished and more closely- 

 punctured abdomen, and pale hairs on vertex ; from bigelovice by the 

 clear wings ; and from arinatus by its smaller size, darker flagellum and 

 tegula?, and more shining abdomen and legs. 



XYLOCOPiDiE, Xylocopa. 

 Female. 17 mm. 



Entirely black ; wings pale brown ; dorsum shining ; middle of dorsulum 

 impunctate ; abdomen with the ptmctures irregularly distributed, at no 



place far apart orpifex. 



Xylocopa orpifex, Sm., Trans. Ent. Soc, Lond., 1874, p. 298. 

 Riddle, 4th July, and Corvallis, loth Oct., 13th Dec, Oregon. 

 (Cordley.) 



BOMBID/?! 



Ocelli large ; 5 with the ocelli below supraorbital line, in the narrowest 

 part of the front, distance between lateral ocelli greater than the 

 distance between the lateral ocellus and the eye. ^ with the ocelli 

 frontal, the lateral one less than its diameter from the eye, malar 

 space much shorter than wide Bombias. 



Ocelli small ; 9 with the ocelli near the supraorbital line, above the 

 narrowest part of the front, the distance between lateral ocelli about 

 equal to the distance between the lateral ocellus and the eye. $ with 

 the ocelli vertical, the distance between the lateral ocelli and between 

 them and the eye as in the § > malar space about as long as 



wide Bombus. 



Bombias, Robt. 



Pubescence of head black, in the male pale ; dorsum of thorax, pleura, 

 first dorsal segment entirely, second segment partly, with pale ochreous 

 pubescence separatus. 



Bombias separatus, Cress., Proc. Ent. Soc, Phil., ii., p. 165. Taken 

 at Corvallis, Oregon, by Prof. Cordley, as follows: % ^ 's, 21st May 

 1S99; ist June, 1898; 4th October, 1899. $ (J 's, 24th April, 1899; 2nd 

 and 20th September, 3rd October, 5th November, 1899. 



Bombus, Latr. 



Pubescence of first three dorsal segments of abdomen pale i. 



Pubescence of first three dorsal segments of abdomen various, at least 

 one of the segments black, or partly black 4. 



