PSYCHE 
[August 
72 
green color. Within Ls a large cavity, opening above between the clo.sely apprc.s.sed, 
scale-like leave.s at the .summit of the gall. Tlie walls of the gall are moderately 
thick, fleshy, and Arm. 
I first discovered the.se galls in the latter ])art of Ajiril, but even at that date the 
pupal stage had been attained. 'I'he formation of the gall and the growth of the 
larva must take place during the previous Fall, while the shoot is still very imma- 
ture. In each gall the ])U])arium lay in the upper part of the chamber. The flies 
emerged the last week in May and the fiivst week in -Time. Many of the galls 
were parasitized by a large black ('halcis-tly. 
Eiiireta spamt (Figure 2). While the gall of Eurosta reticulata ])rojects above 
the surface of the ground, the gall of the ]>resent species is wholly underground. 
The injury here is likewise to the young shoots, but the gall is less specialized and 
