53^ CONNECTICUT GEOL. AND NAT, HIST. SURVEY. [Bull. 



Head not so wide, two and one-half times as wide as long 



hiemalis 



6. Tegulae black, second flagellar joint longer than third alnicola 

 Tegulae rufo-piceous, second and third flagellar joints nearly 



equal tumidus 



7. Coxae black 8 



Coxae rufo-piceous or pale .* 10 



8. Metapleurae bare, aciculated cynipicola 



Metapleurae covered with a sericeous pubescence 9 



9. Tegulae rufo-piceous .rubi 



Tegulae black asynaptss 



ID. Tegulae rufo-piceous 11 



Tegulae black, second flagellar joint longer than the third 



astericola 



11. No tuft of hair at the base of parapsides, second flagellar 



joint larger than third actinomeridis 



Tuft of hair at base of parapsides, second and third flagellar 

 joints about equal vemoniae 



12. Vertex transversely aciculate 13 



Vertex smooth, not aciculate pinicola 



13. Coxae black, legs black or brown-black 14 



Coxae dark rufous or piceous, legs in part pale 15 



14. Pedicel as long as two following joints united salicicola 



Pedicel much longer than two following joints united .. diplosidis 



15. Pedicel as long as first and second flagellar joints united . . . 



baccharicola 

 Pedicel longer than first and second flagellar joints united 



solidaginis 

 Males. 



1. Mesonotal furrows distinctly indicated posteriorly 2 



Mesonotal furrows entirely absent, or present only as the 



slightest trace posteriorly 8 



2. Coxae brown or rufo-piceous 7 



Coxae black 3 



3. Legs in part black 4 



Legs rufo-piceous, anterior tibiae and the tarsi honey-yellow 6 



4. Legs black, only tarsi pale 5 



Trochanters, anterior knees and tibiae at tips, all tarsi, and 



base of mid and posterior tibiae honey-yellow hiemalis 



5. Pedicel as long as first and second flagellar joints together 



striaticeps 

 Pedicel as long as second flagellar joint viticola 



6. Pedicel as long as first and second flagellar joints united 



csmipicola 

 Pedicel shorter than first and second flagellar joints united 



alnicola 



