Midge galls 



i Small gall of Rhopalomyia capitata Felt, on golden- 

 rod 



2 Galls of Rhopalomyia racemicola O. S. among 



goldenrod blossoms 



3 Gall of Rhopalomyia anthophila O. S. among gold- 



enrod blossoms 



4 Old gall of the nun midge, Asphondylia monacha 



O. S., on narrow-leaved goldenrod 



5 Fusiform gall, Rhopalomyia fusiform is Felt, on 



leaves and stems of narrow-leaved goldenrod 



6 Stemmed fusiform gall, Rhopalomyia pedicellata 



Felt, among flowers and on leaves of narrow-leaved golden- 

 rod 



7 Irregular mine in goldenrod leaf, adult not reared 



8 Blister gall of Asteromyia flavolunata Felt on 



goldenrod 



9 Blister gall of Asteromyia rubra Felt on goldenrod 

 ga Lower surface of leaf showing the whitish discoloration pro- 

 duced by the gall 



io Small blister galls of Asteromyia flavolunata Felt 

 on solidago 



1 1 Blister gall on Asteromyia rosea Felt on Solidago 



r u g o s a 



12 Blister gall of Asteromyia laeviana Felt on Aster 



1 a e v i s 

 1 2a Lower portion of leaf showing characteristic discoloration on 

 under surface of the gall 



13 Old blister gall of Asteromyia rubra Felt on solidago 



14 Blister gall of Asteromyia panic u lata Felt on 



Aster paniculatus 



15 Dark blister leaf gall of Asteromyia rubra Felt on 



solidago 

 15a Under surface of infested leaf 



16 Blister leaf gall of Asteromyia carbonifera Felt 



on narrow-leaved solidago 



17 Blister gall of Asteromyia on solidago, adult unknown 



216 



