REPORT OF THE STATE ENTOMOLOGIST I913 



193 



Lasiopteryx schwarzi Felt 

 191 1 Felt, E. P. N. Y. Ent. Soc. Jour., 19:191-92 



Numerous midges were reared in the spring of 191 1 from a 

 dead wild fig branch collected by Mr E. A. Schwarz at Paraiso, 

 Panama. It is easily separated from the preceding form by the 

 larger number of antennal segments and marked differences in 

 coloration. 



Lasiopteryx coryli Felt 



1907 Felt, E. P. New species of Cecidomyiidae II, p. 11 (Dasyneura) 



1908 N. Y. State Mus. Bui. 124, p. 292, 342 (Dasyneura) 



This species was reared July 11, 1907 from a fuzzy, wrinkled, 

 fold gall at the base of hazel leaves taken at West Nyack, N. Y. 

 The work of this insect was quite common in the vicinity and a 

 number of adults were reared. 



Fig. 23 Lasiopteryx coryli, 5th antennal segment, a male, 

 c reverse of b (enlarged, original) 



female, 



Gall. The gall produced by this species occurs at the base of 

 hazel leaves, Corylus a m erica n a , and consists of a series of 

 radiating folds from the point of its attachment with the petiole. 

 These folds rarely extend beyond the basal third of the leaf and 

 form a series of deep, thickly haired wrinkles usually with the 

 basal portions tinted with pink. The white larvae are 1 mm long. 



Male. Length 1 mm. Antennae longer than the body, sparsely 

 haired, dark brown or black, the basal segments pale yellowish; 14 

 segments, the fifth with a stem as long as the subcylindric basal 

 enlargement, which latter has a length two and one-half times 

 its diameter; terminal segment somewhat prolonged, tapering 

 (fig. 22). Palpi; the first segment short, stout, subquadrate, 

 the second short, rounded distally, the third with a length fully 



