l8 ENTOMOLOGICAL NEWS [Jan., 'll 



A new Bee from New York State 



By T. D. A. COCKERELL, Boulder, Colorado. 



I have just received from Dr. E. P. Felt a couple of speci- 

 mens of Osmia, collected at Karner, N. Y., June 24, 1902. Dr. 

 Felt writes that he has reared a parasite from the species, and 

 is anxious to know its name. It proves to be new, and may be 

 described as follows : 



Osmia felti n. sp. 



? . Length about 12-13 mm. ; head and thorax strongly and closely 

 punctured, dark blue, suffused with green, especially on supraclypeal 

 area, front, mesothorax, scutellums and metathorax ; head rather large. 

 broad, cheeks large and swollen ; clypeus normal, very densely punc- 

 tured, with the lower margin black, smooth and shining, straight, with- 

 out teeth or emargination ; mandibles thick, tridentate; antennae black, 

 scape punctured; no distinct malar space; hair of head and thorax 

 above white, with a faint creamy tinge; a little fuscous hair about 

 ocelli ; hair of face white, but of clypeus largely or moderately mixed 

 with dark fuscous; lower part of cheeks with some fuscous hair: hair 

 of thorax nowhere mixed with dark, that of pleura, metathorax etc. all 

 white; area of metathorax wholly dull, granular, faintly rugulose at 

 base; tegulae shining piceous; wings strongly brownish infuscated; 

 b. n. going basad of t. m. ; legs black, not even the hind coxae metallic; 

 middle femora swollen and obtusely angulate below ; hair of hind 

 tarsi dark fuscous; abdomen shining, rather sparsely punctured, dark 

 steel blue, with white hair on first segment, very short thin fuscous 

 hair on the others, and a slight fringe of minute shining hairs (not 

 making a visible band) on the third and following segments; sides 

 with some white hair; ventral scnpa black; last dorsal segment with 

 appressed pale yellowish hair. 



In all thin,?? this is very close to 0. densa Cresson, but 

 densa has much long- coarse black hair on the face and front, 

 the dark hair of the abdomen is longer and more evident, while 

 the shining red or pale hair so evident on the middle basitarsus 

 of densa is scarcely or not developed in felti. 



The type locality of 0. densa is Pike's Peak, Colorado. It ex- 

 tends thence northwestward to Washington State. O. felti 

 might be regarded as a geographical race or sub-species, but 

 even so it would deserve recognition. 



