Records of Bees. 767 



The female, not before known, is very like that of O. reguliaa, 

 but the abdomen is narrower, with conspicuous black hair 

 dorsally, there are long black hairs on the head and thorax 

 above, and the clypeus has a good deal of coarse black hair. 

 The mesothorax is very strongly punctured, and the abdomen 

 is very blue. This female is very like the smaller specimens 

 of O. cobaltina (variety with green head and thorax), but 

 has thin white hair right across the lower part of face, best 

 seen from above. It is possible that I am in error in 

 ascribing this female to 0. ednce, but I have no other 

 plausible mate for it. 



A bright green male from the mountains near Claremont 

 (Baker), having the hind margins of the abdominal segments 

 bluish, and the hair of the head and thorax above white, is 

 placed as a variety of 0. regulina, but it seems intermediate 

 between that species and 0. ednce. Can it be a hybrid ? 



Osrnia colbaltina, Cresson. 



This was based on females from Nevada and California, 



having the hair of the head all black. Six females from 



Ormsby County, Nevada [Baker), vary much in colour and 



size (one is only 7 mm. long), and several show a little pale 



hair at sides of face. Cresson did not describe the male of 



cobaltina, but Robertson holds that his 0. ilUnoensis is its 



male. Since 0. cobaltina is a species characteristic of the 



Pacific coast region, and is replaced in the Rocky Mountains 



by the closely allied and probably intergrading 0. bruneri, 



Ckll., it seems very improbable that the Illinois 0. ilUnoensis 



can be its male. The male of 0. bruneri is known to me, 



and has much coarse black hair on the clypeus &c., whereas 



O. ilUnoensis has the hair of the clypeus all white. 



Osmia kincaidii, Cockerell. 



Three males from mountains near Claremont, California 

 (Baker and Crawford), one female from Claremont (Baker). 

 These belong to the smaller race mentioned in the original 

 description. The femora and tibise of the female are 

 bright green. 



Osmia bennetta, Cockerell. 

 Males from Claremont and adjacent mountains (Baker). 



Osmia granulosa, sp. n. 



? . — Length 7-7^ mm. 



Brilliant deep purple, varying to blue-green ; ventral 



51* 



