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THE PHILIPPINE 



Journal of Science 



Vol. XIII 



D. General Biology, Ethnology, 

 AND Anthropology 



NOVEMBER, 1918 



No. 6 



NEW PHILIPPINE GALL MIDGES, WITH A KEY TO THE 



ITONIDID^ 



By E. P. Felt 



(State Eyitomologist, Albany, New York) 



ONE PLATE 



Comparatively little appears to have been done on the gall 

 midges of the Philippine Islands, although several papers, in 

 recent years, have discussed the insect galls of that general 

 region, mostly without descriptions of the adults. It is probable 

 that some of the deformities characterized earlier without the 

 bestowal of scientific names are the work of species described 

 below. There is a large and interesting gall-midge fauna in 

 the Philippines, and this contribution is to be considered as 

 only an introduction to work that should be prosecuted system- 

 atically and upon a much more extended scale, if there is to 

 be an adequate understanding of this large group of minute 

 forms. 



The richness and diversity of the Philippine fauna is suggested 

 by the fact that in the State of New York practically six hundred 

 species, belonging to seventy-five genera, have been already re- 

 cognized and the ground has been, by no means, thoroughly 

 covered. Of the Itonididee there are now known approximately 

 three hundred genera and nearly three thousand species with 

 much yet to be learned concerning the faunae of subtropical and 

 tropical regions. 



The student will find J. J. Kieffer's work ' one of the most 

 comprehensive for the study of this group as a whole, and the 

 references given in that volume serve as a ready index to a 

 voluminous and widely scattered literature. 



^ Diptera: Family Cecidomyidse. Genera Insectorum, Fascicle 152 (1913). 



157348 281 



