THE CANADIAN ENTOMOLOGIST. 147 



pubescence of thoracic dorsum with quite a fulvous tint ; abdomen thinly 

 pubescent, but hardly banded, hair at apex yellowish or nearly white. 



Hab. — Paraje, N. M., April nth, 1898, at flowers of plum; 3 (^ , 

 I $ . Differs from A. Belfragei by the pubescence being not so bright, 

 clypeus without impressed line, wings not very dark at apex, abdomen 

 not so punctate. Also rather resembles A. polemonii, Rob. 



Aiidrena pru7iifloris, n. sp. — $. Slightly over 10 mm. long, black, 

 with grayish-white to white pubescence ; Jiind tibicc, and all the tarsi, 

 bright ferruginous. Head broad, facial quadrangle broader than long ; 

 face hairy, but not so as to hide the surface ; clypeus minutely rugose 

 and strongly punctured, with a small shining space in the median line 

 not far from the anterior margin ; frons striate, with punctures between 

 the ridges ; vertex minutely tessellate, and punctured ; antennte dark, 

 flagellum only faintly brown towards the end, first flagellar joint fully as 

 long as the two following together ; process of labrum broad and low, 

 feebly emarginate ; mandibles wholly dark. Thorax with rather abundant 

 pubescence, not hiding the surface, grayish-white or very pale mouse 

 colour on mesothorax, otherwise white ; mesothorax microscopically 

 tessellate, with strong, rather close punctures ; metathorax dull, enclosure 

 triangular, ill-defined, with irregular feeble raised lines. Tegulse piceous ; 

 wings smoky subhyaline, nervures and stigma dark brown, third sub- 

 marginal cell narrowed about one-half to marginal. Abdomen somewhat 

 depressed, shining, very distinctly punctured ; hind margins of third and 

 fourth segments with entire dense' snow-white bands, second segment 

 with a similar band broadly interrupted in middle, first with only patches 

 of white pubescence at the sides ; anal fimbria sooty. 



Hab. — Paraje, N. M., April 11, at flowers of plum. Allied to 

 A. violce, Rob. 



Hesperapis, n. g. — A small bee with the general aspect of a Phil- 

 eremine. Body rather densely clothed with very short mosslike pubes- 

 cence ; longer hairs intermixed ; abdomen with entire hair-bands. 

 Wings rather short ; stigma subobsolete ; marginal cell large, obtusely 

 pointed, the apex not diverging from the costa ; two submarginal cells, 

 the second about two-thirds the length of the first, narrowing rather more 

 than one-half to marginal ; both recurrent nervures joining the second 

 submarginal cell at about the end of the first and beginning of the last 

 fifths. Hind legs with large black bristles. Ocelli large, very prominent, 



