PSYCHE 



VOL. XX. OCTOBER, 1913. No. S 



THE GALL MIDGE FAUNA OF NEW ENGLAND. 



By E. P. Felt, 

 Albany, N. Y. 



The following list of New England Diptera referable to the 

 Itonididse has been made possible through the co-operation of a 

 few individuals. Mr. C. W. Johnson and Mr. Owen Bryant have 

 collected in various localities and generously placed their material 

 at our disposal, while Miss Cora H. Clarke has been particularly 

 successful in collecting galls and rearing the adults. The late Dr. 

 M. T. Thompson made noteworthy additions to our knowledge 

 of this group. In addition to the above we have referred to the 

 list of insect galls prepared by Miss Stebbins. 1 This latter in- 

 cludes a considerable number of common species which have also 

 been recorded or observed by other workers. 



In view of the fact that nearly 900 species of gall midges are 

 known to occur in America, it can hardly be claimed that the 

 present list of 137 species exhausts the possibilities for New Eng- 

 land, though it compares very favorably with the list of forms 

 recorded by us from western North America, 2 a territory much 

 larger and more diversified than that of New England. The sim- 

 ilarities and differences in our knowledge concerning the fauna 

 of these areas is well shown in the following tabulation. 



1 1910, Stebbins, F. A. Springfield Mus. Nat. Hist. Bui. 2. 



2 1912, Pomona College Journ. of Ent. 4:753-57. 



