38 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



(This was marked as the male of A. trapezoidina, described below; 

 but in my opinion it is a quite distinct species.) 



6 48 . Head ordinary. 

 a 50 . Face broader. 



ANDRENA PADOUCORUM, new species. 



Evergreen, Colorado. July 16, 1897. On Sedum stenopetalum. 

 (Dunning, 1308.) 



Male. — Length, 8 mm. Black, with dull white pubescence. Head 

 broad, facial quadrangle broader than long. Process of labrum broad, 

 truncate. Clypeus convex, shining, with strong well separated punc- 

 tures. Front and vertex dull. Cheeks normal. Flagellum ob- 

 scurely brownish beneath. Third antennal joint more than twice 

 as long as fourth, and about one-third longer than fifth. Mesotho- 

 rax dull, without evident punctures. Metathorax dull and granular, 

 the area scarcely defined. Tegulae dark brown. Wings hyaline, 

 the stigma and nervures dark reddish brown. Basal nervure meeting 

 transverse median. First recurrent nervure joining second submar- 

 ginal cell about middle. Spurs light ferruginous. Abdomen shin- 

 ing, thinly hairy, the hind margin of the segments brownish, and 

 with thin white hair bands at sides of segments and right across on 

 fourth. Apical plate small and narrow. 



(This is very close to A. campanulae; possibly only a variety or 

 race.) 



In the key, A. padoucorum falls in a couplet with A. liarveyi, sepa- 

 rating thus : 



Cheeks rectangular in outline, angle of cheeks opposite middle of eye; pubescence 



on face and thorax partly black harveyi 



Cheeks rounded in outline; pubescence whitish padoucorum 



ANDRENA CAMPANULAE, new species. 



Palmer Lake, Colorado. July 13, 1901. 



Male. — Length, about 8 mm. Black; pubescence. grayish white, 

 not so long as in some other species. Head ordinary. Facial quad- 

 rangle about square. Mandibles not especially long, red at tip. 

 Process of labrum broadly truncate. Clypeus shining, with strong, 

 well-separated punctures; front dull. Flagellum obscure reddish 

 beneath. Third antennal joint twice as long as fourth; fifth longer 

 than fourth but still short. Mesothorax dull even posteriorly, scutel- 

 lum also dull; area of metathorax small, coarsely granular, obscurely 

 plicate at base. Tegulae piceous. Wings brownish, the basal half 

 clear hyaline, nervures and stigma dark reddish. Basal nervure 

 meeting transverse median. First recurrent nervure joining second 

 submarginal cell beyond middle. Spurs amber color. Hair on inner 

 side of hind tarsi light chocolate. Abdomen shining, hardly punc- 

 tured, hind margins of segments somewhat reddish; second segment 



