l6o CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



4. Ocellar furrow distant from median ocellus, connected with 

 it by a distinct interocellar furrow; depressed area around 

 median ocellus small with precipitous walls, forming a 

 well marked V; median fovea a broad, deep pit, subequal 

 to lateral fovea; body polished, with sparse setigerous 

 punctures, and black, with apices of coxae, trochanters, knees, 

 tibiae, and tarsi, white ; front femora sometimes only inf us- 

 cated at apex; saw-guides straight above, oblique at apex, 

 convex below, and rounded to a point at apex above. Length 



4 mm rubi 



Ocellar furrow adjacent to median ocellus, interocellar fur- 

 row therefore wanting; depressed area behind median ocel- 

 lus broad; median fovea a broad, deep pit, larger than 

 lateral fovea; lateral fovea distinct from antennal fovea; 

 body polished, with sparse setigerous punctures; saw- 

 guides straight above, somewhat oblique below, broadly 

 obliquely rounded to a point at apex above. Length 4 mm. 



bethunei 



M. canadensis Marlatt. 



M. capitalis Norton. 



M. rohweri MacGillivray. 



M. rubi Forbes. Larva a leaf miner in blackberry and 

 dewberry. New Haven, 6 July, 1904 (H. L. V.). 



M. bethunei MacGillivray. Larva a leaf miner in black- 

 berry. 



HYLOTOMINyE. 

 Key to Genera. 



Front wings with cell R1+2 not appendiculate at apex; cells R 

 and R 5 coalesced Atomacera p. 160 



Front wings with cell Ri +2 not appendiculate at apex; cells R 

 and R 5 separate Hylotoma p. 161 



Atomacera Say. 

 Key to Species. 



1. Body black and rufous 2 



Body black; wings strongly infuscated; front legs white or 



piceous beyond knees; head and body polished. Length 

 4 mm. Without much doubt the male of the following 

 species debilis 



2. Body black, with pronotum, mesonotum, scutellum, and upper 



part of pleurae, rufous; wings strongly infuscated; legs 

 paler beyond knees, front pair usually white; mesonotum 

 sparingly punctate. Length 4 mm ruficollis 



