i6o 



NEW YOKK STATE MUSEUM 



characteristics. There is a difference in habit as well as color in the 

 European 1 1 o n i d a p i n i DeG. All stages have been described 

 by the writer (see the above citation). 



Fig. 31 Retinodiplosis inopis, 



distal three antennal segments of 

 female (enlarged, original) 



Retinodiplosis resinicoloides Wlms. 



1909 WilUams, F. X. Ent. News, 20: 1-8 (Cecidomyia) 



1910 Ent. See. Am. Ann., 3:45-56 (Cecidomyia) 



191 1 Felt, E. P. Econ. Ent. Jour., 4:465 (Itonida) 

 191 8 N. Y. State Mus. Bui. 200, p. 16 



This species, evidently closely allied to Retinodiplosis 

 r e s 1 n i c o 1 a O. S., occurs in Cahfornia in the resinous exudations 

 of the Monterey pine, Pinus radiata. 



The midges, according to the observations of Mr Williams, were 

 abroad in March, adults being plentiful in April. The soft, oblong 



