No. 22.] HYMENOPTERA OF CONNECTICUT. 709 



flowers of golden-rod, sunflower, parsnip, and common meadow- 

 sweet. 



S. (D.) confertus Say. 5^. falcifer Patton. 



S. (Sphecodes) minor Robertson. 



Only the female of this species is known, so right here is an 

 opportunity for original research. 



Stafford, 24 August, 1905 (W. E. B.), on golden-rod 

 {Solidago). 

 °S. (S.) heraclei Robertson. 



S. (Sphecodium) mandibularis Cresson. S. cressoni 

 Robertson. 



Occurs in all parts of the State, and has been taken at Bran- 

 ford, Colebrook, New Haven, and Stafford, in June, July, and 

 August, visiting flowers of golden-rod (Solidago), New Jersey 

 tea {Ceanothus americanus), and common day-lily (Hemerocallis 

 fulva). 



ANDRENID.E. 



Andrena Fabricius. 

 These are short-tongued burrowing bees ranging in size from 

 6 mm. to 15 mm. In color they are black, with a few exceptions, 

 which are reddish, brownish, or with a metallic tinge. In this 

 genus, as in the genus Halictus, there are species of inestimable 

 value to man on account of their habit of pollenizing the blossoms 

 of our most important fruits such as the apple, cherry, plum, and 

 others. 



Key to Species.* 



Females. 



1. Facial line as long as or shorter than transfacial line 2 



Facial line distinctly longer than transfacial line; fovea ex- 

 tending below antennal line; pubescence pale; anal fimbria 

 brown bradleyi 



2. Abdomen with second dorsal segment impressed less than 



one-half distance from base to apex 3 



Abdomen with second dorsal segment impressed one-half 

 or more than one-half 15 



3. First joint of flagel shorter than next two joints combined., 4 

 First joint of flagel as long as or longer than next two joints 



combined 6 



* Published by the author in Entomological News, Vol. xviii, p. 280, July, 1907. 

 Reproduced here with slight changes. 



