96 Journal of Entomology and Zoology 



Xylocopa orsifcx. Sm. Det. Vier. Mountains near Claremont, 

 CaL, Baker. April, Wood. 



Xylocopa calif ornica. Cr. Det. Friese. Claremont, Cal., Baker. 

 April, Nemophila. 



MEGACHILIDjE 



Megachile pruing. Sm. Det. Friese. Claremont, Cal., Bray. 

 May, Fl., Cactus. 



Megachile grindeliarum. Ckll. Det. Ckll. Claremont, Cal., 

 Bray. May, Fl., Poppy. 



Megachile occidentalis. Fox. Det. Ckll. Claremont, Cal., Bray. 



Megachile frugalis. Cr. Det. Ckll. Claremont, Cal., Baker. 



Osmia erythrosmia remotula. Des. Ckll. Claremont, Cal., 

 Baker. 



Osmia quadriceps. Ckll. Det. Cr. Mountains near Claremont, 

 Cal., Baker. 



Osmia atrocyanea. Ckll. Det. Ckll. Claremont, Cal., Baker. 

 May, FL, Amsinckia intermedia. 



Osmia propinqua. Cr. Claremont, Cal., Baker. 



Osmia kincaidii. Ckll. Det. Ckll. Mountains near Claremont, 

 Cal., Baker. 



Osmia bennetta. Ckll. Det. Ckll. Mountains near Claremont, 

 Cal., Baker. 



Osmia Integra. Ckll. Det. Ckll. Claremont, Cal., Baker. 



Osmia cobaltina. Cr. Det. Ckll. Claremont, Cal., Baker. May, 

 Lotus glaber. 



Osmia faceta. Cr. Det. Ckll. Claremont, Cal., Baker. 



Osmia clarescens. Ckll. Det. Ckll. Claremont, Cal., Baker. 

 April, Fl., Phacelia tanacaetifolia. 



Osmia granulosa. Ckll. Det. Ckll. Claremont, Cal., Baker. 



Osmia regidina. Ckll. Det. Ckll. Mountains near Claremont, 

 Cal., Baker.' 



Osmia edna, female. Ckll. Det. Ckll. Mountains near Clare- 

 mont, Cal., Baker. 



Osmia playtura. Ckll. Det. Ckll. cotype. Claremont, Cal., Baker. 



Osmia hypochrysea. Ckll. Det. Ckll. Claremont, Cal., Baker. 



