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



ments one to five rufous; wings yellowish, veins black. 

 Length 9 mm inspectus 



16. Surface of apex of scutellum not striate over its entire sur- 



face u 17 



Surface of apex of scutellum striate over its entire surface. ... 19 



17. Mesonotum with the median lobe with a row of punctures 



on each side that are four or five times as large as the 

 adjacent punctures; postocellar area and posterior orbits 

 uniformly punctate; sides of antennal furrow behind ocelli 

 continued as a ridge to eyes; body black, with a nar- 

 row margin on pronotum, abdominal segments one to four 

 and the basal half of fifth segment, trochanters in part, 

 femora, except a black spot at apex above, and knees, 



rufous ; wings hyaline. Length 8 mm apricus 



Mesonotum with median lobe not with a row of large punc- 

 tures on each side 18 



18. Antennal furrow an elongate, punctiform indentation not ex- 



tending below lateral ocelli; postocellar area and posterior 

 orbits uniformly punctate; mesonotum and scutellum mod- 

 erately, densely, finely punctate; body rufous, with head, 

 antennae, lateral lobes of mesonotum, metanotum, scutel- 

 lum except at sides, postscutellum, pectus, legs, and saw- 

 guides black; wings fuliginous with clearer lines. Length 



1 1 mm bicolor 



Antennal furrow extending as a narrow, depressed line from 

 occiput below lateral ocelli; postocellar area and posterior 

 orbits with punctures of the same size but closer together 

 on postocellar area; lateral lobes of mesonotum not so 

 densely punctate as median lobe or scutellum; body black, 

 with abdominal segments one to four, and tibiae, at least on 

 their basal half, rufous. Length 7 mm cohaesus 



19. Surface of apex of scutellum longitudinally striate 20 



Surface of apex of scutellum transversely striate 24 



20. Head viewed from above with a deep transverse furrow, 



broadly rounded at bottom, extending from vertical fur- 

 row to beyond hind angle of eye 21 



Head viewed from above not with a deep transverse furrow 

 extending from vertical furrow to eye, sometimes indicated 

 for a part of the distance 23 



21. Vertical furrows punctiform or wanting; postocellar area 



more densely punctate than posterior orbits or region ad- 

 jacent to vertical furrows; vertex with a small impunctate 

 area adjacent to vertical furrows; scutellum more densely 

 punctate than lobes of mesonotum; body black, with pro- 

 thorax, tegulse, median lobe of mesonotum, and abdominal 



segments one to six, rufous. Length 9 mm inspiratus 



Vertical furrows linear and distinct 22 



