728 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



with the basal vein inserted beyond or interstitial with nervulus ; 

 third antennnal joint in female distinctly shorter than fourth ; 

 male with third antennal joint longer than fourth, and with the 

 seventh dorsal abdominal segment entire, without a notch at its 

 apex. 



Brookfield, 27 July (E. L. Dickerson). 



Epeolus Latreille. 



This genus, as now restricted, is represented in Connecticut 

 by a single species. 



E. pusillus Cresson. 



Length 6-8 mm. Front not tuberculate ; lower half of pleurae 

 finely and closely punctate; lateral spines of the scutel hardly 

 extending beyond the latter; spurs black. Pubescence pale 

 cinereous or silvery ; tubercles, tegube, and legs reddish. 



Stafford, 24 August, 1905 (W. E. B.), on goldenrod; Say- 

 brook, 31 August, 1904 (H. L. V.), on flowers of fireweed 

 (Erechtites hi er act folia). 



Triepeolus Robertson. 

 Key to Species. 



Females. 



1. Fifth ventral abdominal segment convex; corresponding 



dorsal segment usually with lateral patches 2 



Fifth ventral abdominal segment flattened or concave; cor- 

 responding dorsal segment with a semicircular sericeous 

 truncation; black; mesonotum anteriorly with a broad 

 pale yellow band; border of first dorsal abdominal seg- 

 ment broad, interrupted basally and sometimes apically; 

 fasciae continuous on second to fourth segments, gradually 

 or abruptly widened laterally on second segment; length 

 13-16 mm concavus 



2. Border of first dorsal abdominal segment much wider on 



sides than near middle 3 



Border of first dorsal abdominal segment of almost uniform 

 width 4 



3. Mesonotum bilineate; fifth dorsal abdominal segment dull, 



densely punctate; its apex convex, the beveled space 

 thereof always, and lateral patches of pubescence usually 

 distinct; apex of pygidium convex; fasciae on first and 

 second segments interrupted, on third and fourth segments 



