360 GEOLOGICAL SURVEY OF NEW JERSEY. 



Order DIPTERA. 



Family CECIDOMYIDJE. 



CBCIDOMYIA, Meigen. 

 C. anthophila, O. S. 

 C. cornuta, Walsh. 

 C. culmicola, Morris. 

 C. destructor, Say. 



The Hessian fly. Not destructive in New Jersey. 

 C. grossulariee, Fitch. 

 C. ornata, Say. 

 O. salicis-brassicoides, Walsh. 



I have seen the galls of this species not rarely. 



C. vaccinii, J. B. Smith. 



Common on Cranberry ( Faccmium ) and Loose Strife (Z(3/si- 

 machia). 



DIPLOSIS, Lw. 



D. caliptera, Fitch. 

 D. carysB, 0. S. 



D. graminis, Fitch. 

 D. inimica, Fitch. 

 D. robinise, Hald. 

 D. tritici, Kirby. 



Was reported as doing some damage in New Jersey during 

 the season of 1889. 



ASPHONDYLIA, Lw. 

 A. monacha, 0. S. 

 A. recondita, 0. S. 

 A. rudebeckise-conspicua, 0. S. 



