582 
DIPTERA. 
to be known of it except for one severe outbreak in South India 
when the pest was completely destroyed by parasites. 
Another species, Oligotrophies saligneus (fig. 377), has been found 
on Willow, and one has been bred at Pusa from the spores of wheat-rust. 
Fig. 377—OUIGOTROPHUS SALIGNEUS. BELOW IS THE GALL WITH PUPA- 
SKINS PROTRUDING. 1 C. REPRESENTS THE MALE ANTENNA, le. THE 
MALE CLASPING ORGANS, 1/. THE OVIPOSITOR. [I. M. N.] 
