80 Mr. T. D. A. Cockerell on Bees of the 



closely punctured ; vertex dull, minutely rugulose, becoming 

 striatulate, sparsely punctured. Thorax quite densely 

 pubescent, except dorsulum and base of metathorax ; meso- 

 tliorax and scutellum microscopically tessellate, with rather 

 large moderately sparse punctures. Enclosure of metathorax 

 minutely granular, with irregular, small, rather obscure 

 wrinkles, not bounded by a distinct rim. Tegulai amber- 

 colour. Wings yellowish hyaline, external margin broadly 

 smoky, darkest towards the apex. Nervures and stigma 

 reddish fulvous, costal nervure black. Third submarginal 

 cell narrowed one half to marginal. Second submarginal 

 much broader below than above. Legs black; anterior 

 tibiae partly in front, middle and hind tibiae and all the tarsi 

 ferruginous. Abdomen rather broad, shining, thinly pubes- 

 cent, the pubescence forming thin bands along the apical 

 margins of the second and following segments; first segment 

 black, except hind margin and a central shade ; second seg- 

 ment with a black spot on each side ; fourth segment with a 

 suffused black shade, fifth brownish black, as also the sixth, 

 but the colour of that almost hidden by the pubescence. 

 Venter rufous, the last three segments obscurely stained 

 blackish. Surface of abdomen above microscopically tessel- 

 late, with the punctures very small and sparse. 



Hab. College Farm, Mesilla Valley, N. M., April 9, 

 1895, on plum {Jessie E. Casad, 163). This is evidently 

 near to A. discreta, Sm., from Oajaca, Mexico, of which only 

 the female is known ; it may possibly be its male, but there 

 are several similar species, and Smith does not mention the 

 abdominal punctuation. 



tt First segment of abdomen strongly punctured. 



Andrena argemonisj CklL, sp. n. 



(J . Length about 16 millim. Head and thorax black, 

 abdomen black and rufous, femora black, tibia3 and tarsi 

 ferruginous, pubescence fulvous. Head longer in proportion 

 to its breadth, with the face narrower than in Jessicce. Pu- 

 bescence short, but quite dense on cheeks, occiput, sides of 

 face, and between the antennae. Clypeus medially bare 

 except for a few scattered hairs, shining, with very close 

 large punctures. Mandibles and antennse wholly black. 

 Vertex smooth and shining, with large, rather sparse punc- 

 tures, which suddenly become smaller and very dense on 

 front. Mesothorax and scutellum smooth and shining (not 

 tessellate as in Jessicce) , with large, tolerably close punctures. 

 Enclosure of metathorax granular, irregularly wrinkled so as 



