REPORT OF THE STATE ENTOMOLOGIST I907 335 



times its greatest diameter. The other segments are sessile, 

 cylindric and in most species have a length^ or ^ that of the 

 diameter; the nvimber of segments may range from i6 to 22. 

 The femora are strongly swollen and the tibiae, particularly the 

 posterior pair, armed with long, setose spines which, in some 



...-^m^^ 



m^: 





j^: 



c^ 



Fig. 32. Trotteria[subfuscata n. sp., basal antennal segments, much enlarged. 

 (Original) 



forms, extend to the base of the second tarsal segment. The 

 male genitalia present a very characteristic type, differing in certain 

 respects markedly from those of other Cecidomyiidae. 



Key to species 

 a Females 



b 16 antennal segments; abdomen dark brown 



karnerensis n. sp., C 484 



bb 20 antennal segments ; abdomen dark brown 



subfuscata n. sp., C. 618 

 bhb 22 antennal segments 



c Claws stout; legs thickly clothed with scales. Bred from Solidago 



solidaginis n. sp., C. ai568y 



cc Claws rather slender ; legs rather thinly clothed with scales 



caudata n. sp., C. 477 



aa Males 



b 18 antennal segments; abdomen thickly clothed with silvery scales.. 



squamosa, n. sp., C. 522 



bb 20 antennal segments 



c 5th antennal segment with a length more than ^ its diameter . . . 



(Choristoneura) caryae Felt, C. 334 

 cc 5th antennal segment with a length scarcely % its diameter 



d Abdomen silvery white ; tihiae dark fuscous orange 



a r g e n t i n. sp., C. 466 



dd Abdomen silvery yellow ; tibiae and tarsi black 



tarsata n. sp., C. 667 



ddd Abdomen pale brown ; tibiae dark brown 



m e t a 1 1 i c a n. sp., C. 335 



DASYNEURIARIAE 



Species belonging in this tribe may be recognized by the dentate 

 claws, by the 3d vein being well separated from costa [pi. 35], 



