Midge Galls 



1 White flowered aster buds deformed by Rhopalomyia lateriflori 



Felt. (After Clarke) 



2 Goldenrod bunch gall, Rhopalomyia solidaginis Lw. 



3 Flower bud galls of Aster undulatus, deformed by Rhopalo- 



myia sp. (After Clarke) 



4 Subterranean galls on Solidago inhabited by Rhopalomyia thomp- 



s o n i Felt. (After Thompson) 



5 Gall on arrow-wood leaves produced by the purple vein midge, S a c k e n - 



omyia viburnifolia Felt. 



6 Grape filbert gall, Schizomyia coryloides Walsh & Riley. (After 



Weld) 



7 Gall of elder flower midge, • Youngomyia umbellicola O. S. 



(After Weld) 



8 Gall on oak leaves produced by Cincticornia globosa Felt. (After 



Clarke) 

 Dogwood spot gall, Lasioptera corni Felt. (After Clarke) 



