22 NEW YORK STATE MUSEUM 



Gramineae (grasses) 



Reared from grass. Felt 'iij, p. 461 



Itonid. Neolasioptera squamosa Felt 



Triticiim (wheat) 



Reared from pinkish larvae on roots (C. N. Ainslie) 



Itonid. Lestremia sp. 

 •Inhabiting stems. Fig. 16. Howard '95, p. 9 



Hym. Wheat joint worm, Isosoma grande Ril. 

 Deformed leaf sheathes. PI. 4, fig. 6. Doane '16, p. 398 



Hym. Wheat-sheath joint worm, Isosoma vaginicolum 



Doane 

 Collected on wheat. Howard '95, p. 15 



Hym. Wheat joint worm, Isosoma websteri How. 

 Stems bored and discolored. Comst. '90, p. 127 



Hym. Wheat stem sawfly, Cephus pygmaeus Linn. 

 Infesting stems at the uppermost node. Coq. '98, p. 74 



Dipt. Wheat stem maggot, Oscinis carbonaria Lw. 

 Boring wheat stems. Webst. & Reeves '10 



Hym. Western grass-stem sawfly, Cephus oc identalis 



Ril & Marl. 

 Under the lea^ sheath. Fig. 17. Felt '02, p. 705 



Itonid. Hessian fiy, Phytophaga destructor Say 

 Probably the same as the preceding 



Itonid. Cecidomyia culmicola Morr. 

 Associated with the above. Fitch '61, p. 831 



Itonid. Cecidomyia inimica Fitch 

 Associated with th above. Fitch '46, p. 285 



Itonid. Lestodiplosis graminis Fitch 

 Under the leaf sheath. Coq. '98, p. 70. 



Dipt. Chlorops proxima Say 

 Reared from wheat heads. Felt 'i2g, p. 289 



Itonid. Wheat midge, Itonida tritici Felt 

 Reared from wheat heads. Felt 'i2g, p. 287 



Itonid. European wheat midge, Thecodiplosis mosellana 



Gehin 



Reared from wheat heads. Felt 'i2g, p. 288 



Itonid. Prodiplosis fitchii Felt 



Eriocoma cuspidata 



Inhabiting grass stalks. Howard '95, p. 10 



Hym. Grass joint worm, Isosoma californicum How. 



Tripsacum dactyloides (gama or sesame grass) 



Larvae between leaf blades. Felt 'loa, p. 10 



Itonid. Lasioptera tripsaci Felt 



Sorghum saccharatum (Sorghum) 



Reared from seeds. Dean '10, p. 39 



Itonid. vSorghum midge, Contarinia sorghicola Coq. 



