no. 2064. BEES OF GENUS ANDRENA—VIERECK AND COCKERELL. 31 

 ANDRENA WASHINGTONI MANITOUENSIS, new subspecies. 



Manitou, Colorado. April 28. At flowers of Riles leptanthum. 

 (T. D. A. and W. P. Cockerell.) 



Male. — Length slightly over 8 mm. Black, with pale reddish hair, 

 that on thorax above quite bright. Sides of face and anterior part 

 of cheeks above with black hair. Head broad but otherwise ordi- 

 nary; facial quadrangle very much broader than long. Process of 

 labrum emarginate. Clypeus shining, rather well punctured; front 

 dull. Head behind and above eyes broad and flattened. Antennae 

 long but rather thick, entirely black; third joint little longer than 

 fourth and about equal to fifth. Mesothorax dull, not evidently 

 punctured; area of metathorax granular. Spurs cream color. Teg- 

 ulae dark reddish. Wings hyaline, faintly dusky, nervures and the 

 large stigma dull amber. Basal nervure falling short of transverse 

 median. Second submarginal cell small, receiving first recurrent 

 nervure in middle. Abdomen rather slender, shining, without 

 evident punctures, with very thin inconspicuous pale reddish hair 

 bands, absent on first segment and broadly interrupted in middle of 

 next three. Second segment in middle depressed about one-third 

 Apical plate small, not emarginate, almost hidden in light reddish 

 hair. 



In the key this is separated from A. washingtoni bv the nonfasciate 

 abdomen. 



b 37 . Hair of thorax above ochreous or white. 



a 39 . Second submarginal cell receiving first recurrent nervure far beyond middle. 

 a 40 . Pubescence white; cheeks very broad, tuberculate-angled behind above level 

 of middle of eye ; scutellum dullish anteriorly. 



ANDRENA MOESTICOLOR, new species. 



South Park, Colorado. July 23, 1898. 



Male. — Length, 9 mm. Black. The tarsi ferruginous apically, 

 the basitarsi also more or less reddish. Pubescence long and white; 

 black at sides of face above. Head very large and broad. Mandi- 

 bles long and curved downwards, red at apex. Process of labrum 

 slightly emarginate. Clypeus rather closely punctured, with a 

 narrow median smooth hue. Sides of front and vertex dull and finely 

 striate. Cheeks extremely broad, shining, toothed behind a little 

 above the middle. Flagellum obscure brownish beneath. Third 

 antennal joint about a third longer than fourth, fifth a little longer 

 than fourth. Mesothorax dull and granular, the posterior middle 

 moderately shining; area of metathorax short, dull and granular. 

 Tegulae ferruginous, clouded with darker; wings hyaline, very faintly 

 reddish; nervures and stigma dark reddish. Basal nervure just fall- 

 ing short of transverse median. Second submarginal cell large and 

 square, receiving first recurrent nervure about the beginning of its 

 last third. Spurs cream color. Abdomen rather narrow, brilliantly 



