JAVANESE GALL MIDGES 



by 



E. P. Felt, 



Albany, N. Y., U. S. A. 



(With 5 figures) 



The following descriptions and observations relate to a small and very 

 interesting collection of gall midges submitted for study by Doctor W. 

 DoCTERS VAN Leeuwen, Director of the Buitenzorg Botanical Gardens, under 

 date of February 20, 1920. 



The rearings show that two species of the remarkable Stefanieila occur 

 in Java though it should be noted that they are not entirely characteristic for 

 the genus. The two species of Lasioptera reared are noteworthy because of the 

 free third and fourth antennal segments, a generalized condition not observed 

 in long series of American species. The two species of Sdhizomyia, notably 

 5. nodosa and 5. villebmnnea, are peculiar because of the distinctly trinodose 

 characteristic of the flagellate antennal segments, particularly the distal ones 

 and in the case of the first named, there is a very interesting symmetry in the 

 development of the circumfila. It is possible that these two species should be 

 referred to a distinct genus. 



The rearing of the Philippine Lasioptera manilensis Felt and Asphondylia 

 callicarpae Felt and the recent discovery of the probable identity of the 

 Philippine Asphondylia vitea Felt with the Javanese A. viticola K. & L., are 

 all suggestive that further exploration will show considerable ir. common 



