ART. 19. A.MEKICAN BEES OF THE GENUS HALICTUS SANDHOUSE. 1 3 



on the marginal; second submarginal higher than broad, receiving 

 the first recurrent nervure quite near the apex. Legs dark, quite 

 densely pubescent; knees and tarsi red. 



Habitat. — Boulder, Colorado, May 14 (Irene Bleasdale). 



Ty'pe.—Ca.i. No. 26402, U.S.N.M. 



Differs from lazulis Ellis by the darker color; more weakly punc- 

 tured meso thorax; smooth clypeus and supraclypeal area; sculptur- 

 ing of disk of propodeum distinct. 



Distinguished by the very delicately punctured mesothorax, and 

 the clypeus and supraclypeal area very flat and polished, 



HALICTUS (CHLORALICTUS) ACTINOSUS, new species. 



Female. — About 5.5-6 mm. long; golden or brassy green; pu- 

 bescence yellowish white. Facial quadrangle about as long as broad; 

 front and vertex very closely punctured, the punctures becoming 

 more scattered on the sides of the face; supraclypeal area and upper 

 half of clypeus shining golden green with a few coarse punctures; 

 lower half of clypeus black; inner orbits converging below; antennae 

 dark, the flagellum rufo-testaceous beneath. Mesothorax microscop- 

 ically lineolate, very closely punctured; scutellum with deep punc- 

 tures, two small polished spots on the disk; disk of propodeum 

 coarsely granular with rather faint irregular rugae making a reticu- 

 late surface, without an inclosing rim, but polished apically; mes- 

 opleura irregularly punctured; truncation well defined laterally; 

 tegulae very pale testaceous, impunctate. Abdomen obovate, 

 impunctate; the segments clothed with dense pubescence; apical 

 margins of segments pale testaceous. Wings faintly yellowish; ante- 

 rior wing 4.5 mm. long; stigma and nervures pale testaceous ; second 

 submarginal cell almost as broad as long, and almost as long as the 

 third on the marginal; third submarginal gently contracted above, 

 first recurrent nervure joining the second transverso-cubital ; sub- 

 costa very dark. Legs dark with yellowish pubescence. 



Habitat. — California, labeled No. 846 ; collector and exact locality 

 unknown. 



Type.—C^i. No. 26403, U.S.N.M. 



Differs: From vegans Cockerell in having a broader head; paler 

 tegulae and wings; head and thorax green; sculpturing of disk of 

 propodeum distinct. 



From jloridanus Robertson by the broader head; clypeus and 

 supraclypeal area distinctly brassy; paler hairs; head and thorax 

 golden green; disk of propodeum not granular. 



From succinipennis Ellis by the broader head; more closely punc- 

 tured head and thorax; shorter disk of propodeum with distinct 

 sculpturing. 



