50 Journal of Entomology anil Zi'olo^v 



long fuscous hair at sides of front and on scape; cheeks with long 

 white hair; mesothorax and scutellum with thin long erect white 

 hair; abdomen quite without bands, hair at apex dark grayish- 

 fuscous. 



Habitat: Claremont, California {Baker; Pomona coll. 203, 

 229). A distinct species, readily known from D. puthiia Ckll. 

 (male) by the dark hair at apex of abdomen. The dull surface 

 of the abdomen at once separates it from the two following species. 



Diaiidrcita clariveiitris sp. n. 



$ Length a little over 6 mm., robust, with broad-pyriform 

 abdomen; heaci and thorax dull blue-green; legs black, the femora 

 perhaps faintly metallic; abdomen polished, shining, very dark blue- 

 green, the hind margins of the segments broadly subtranslucent 

 brown; head very broad, facial quadrangle much broader than 

 long; antennae only moderately long, flagellum dark redciish; face 

 and front with pure white hair, hair of thorax also white, no dark 

 hair on head or thorax; area of metathorax granular, faintly plica- 

 tulate basally, and with a faint median raised line; tegulae piceous; 

 wings dusky; stigma and nervures reddish-fuscous, the stigma dark, 

 not very large; hair at apex of abciomen very pale, with an ochreous 

 tint. 



Habitat: Claremont, California {Baker; Pomona coll. 212). 

 Allied only to the next species, which is much smaller. D. cJia- 

 lybtpa (Cress.), also taken by Baker at Claremont, has the abdomen 

 shining blue. 



Diaiidnnia scintilla sp. n. 



9 Length about or hardly 5 mm., robust, with very broad ab- 

 domen. General characters as in D. clariveutris, but much smaller; 

 head nearly circular, seen from in front; flagellum very short and 

 stout, the middle joints about twice as broad as long, dark reddish 

 beneath; front shining, punctate; mesothorax and scutellum olive- 

 green, shining, with distinct minute punctures; area of metathorax 

 concave, finely striatulate; stigma and nervures paler than in D. 

 clariveutris, and wings not so gray; punctures on second abdominal 

 segment sparse; hair at apex of abdomen light ferruginous. 



