96 Journal of Entomology and Zoology' 



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

 Cal., Baker. April, Wood. 



Xylocopa califoniicd. Cr. Dct. F'riese. Claremont, Cal., Baker. 

 April, Nemophila. 



MEGACHILID.E 



MegachUe pining. Sm. Det. Friese. Claremont, Cal., Bray. 

 May, Fl., Cactus. 



MegachUe gritideliarniii. Ckli. Det. Ckll. Claremont, Cal., 

 Bray. May, Fl., Poppy. 



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



MegachUe fnigalis. Cr. Det. Ckll. Claremont, Cal., Baker. 



Osmia erythrosiiiia reiiiotnla. Des. Ckll. Claremont, Cal., 

 Baker. 



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

 Cal., Baker. 



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

 May, Fl., Amsinckia intermedia. 



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



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

 Cal., Baker. 



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

 Cal., Baker. 



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



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

 Lotus glaber. 



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



Osmia claresceiis. Ckli. Det. Ckll. Claremont, Cal., Baker. 

 April, H., Phacelia tanacstifolia. 



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



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

 Cal., Baker. 



Osmia edu,r, female. Ckll. Det. Ckll. Mountains near Clare- 

 mont, Cal., Baker. 



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



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



