BEES OF BOULDER COUNTY, COLORADO 259 



POSTSCRIPT 



Since the above went to press, the following species have been added 

 to the Boulder County fauna: 



Andrena erythrogastra Ashm. Bovdder, May 9, fls. Taraxacum; Mrs. Bennett. 



A. bipunctata Cress. Boulder, fls. Prunus; G. Hite. 



A. illinoensis Rob. Boulder, fls. Taraxacum; G. Hite. 



A. pyrrhacita Ckll. Salina, W. &» T. CklL; Boulder, G. Hite. A species with dense erect 



hair covering abdomen, orange-fiilvous in color, except at base and apex; much black 



hair on face. 

 Nomada cuneata Rob. University Campus, fls. Taraxacum; Miss Edna Baker. 

 N. bella Cress., var. Boulder, fls. Nothocalais; Mrs. Bennett. 

 N. edncB Ckll. Campus of University, fls. Taraxacum, April 10; Miss Edna Baker. In 



table of Rocky Mtn. Nomada runs to superba, but much smaller, and apical plate 



notched. 

 Osmia universitatis CkU. University Campus, fls. Taraxacum, April 10; Miss Edna 



Baker. Male runs in table near proxima, but much larger, legs black, abdomen 



bright steel-blue, the hind margins of the segments dark purple. 

 O. leonis Ckll. University Campus, fls. Taraxacum, May 8; Miss Edna Baker. Near to 



gaillardicB, but with a shining pit next to apical margin of clypeus; hair of thorax 



above light ochreous, with a little black. 

 O. gaudiosa Ckll. University Campus, fls. Taraxacum, April 10; Miss Edna Baker. A 



small bright-green species, with white pubescence; posterior part of abdomen dorsally 



with wholly light hair. 

 O. ednce Ckll. University Campus, fls. Taraxacum, May 9; Miss Edna Baker. Allied to 



gaudiosa, but larger, pubescence very yellow; abdomen brilliant, shining golden. 

 O. bennettce Ckll. University Campus, fls. Taraxacum, May 8; Mrs. C. Bennett. Allied 



to O. bella, but no dark hairs intermixed on thorax above. Easily known from 



gaudiosa and ednce by larger size, and black hair on posterior dorsal region of abdo- 

 men. 



Full descriptions of the new species are about to be published in Annals b^ Mag. Nat. 

 History. 



