1 Wing ofOligotrophus betulae Winn., C. 964, X 20 



2 Wing of Sackenomyia acerifolia Felt, C. 38, X 20 



3 Wing ofjanetiella nodosa Felt, C. 1049, X 20 



4. Wing ofjanetiella asplenifolia Felt, C. 1103, X 20 



5 Wing of Cincticornia transversa Felt, C. 53, X 20 



6 Wing ofMayetiola thalictri Felt, C. 98, X 20 



7 Wing of S c h i z o m y i a v i b u r n i n. sp., C, 1212, X 20 



8 Wing of Asphondyliamonacha, female O. S., C. 761, X 20 



9 Wing ofAsphondylia monacha, male, C ai336, X 20 



494 



f 



I 



