Kinsey: Gall Wasp Genus Cynips 295 
The galls develop thru the summer and fall, the adults ma- 
turing and chewing out of the larval cells sometime before 
emergence from the outer walls of the galls. On No- 
vember 10 and 20 Weld found pupae which transformed on 
November 26 and later. He found adults among the radiating 
fibers in the galls by December 4. Patterson found live adults 
in this condition on November 25 (in 1921). By early De- 
cember most of the galls have fallen from the trees, in many 
cases still attached to the dead leaves, and some of the adults 
begin emerging then, altho my collections made on December 
6 and 8 (in 1919) still contained many adults which did not 
emerge until later. 
Several of the cynipid species which occur just northwest 
of Austin are confined to the Texan post oak, Quercus brevi- 
loba, and it is possible that we will not find cava on any other 
host. 
The insect is close to Cynips bella and dugesi. Cava might 
be considered a variety of dugesi , but its median depression 
on the scutellum, its nearly unspotted wings, and more par- 
ticularly its distinctive gall leads to my conclusion that it is 
a distinct species. Cynips cava and Cynips dugesi are the only 
insects in this genus which have shortened wings in which 
the reduction is less than forty per cent of the wing length 
normal for the subgenus. 
Cynips (Atrusca) centricola Osten Sacken 
agamic forms 
FEMALE. — The head dark rufous to black, the antennae dark 
rufous to black, sometimes entirely rufous basally; the thorax rather 
large and heavy, entirely blackish in some varieties, with some dark 
rufous; anterior parallel lines rather prominent, of moderate width; 
lateral lines broad, prominent, long but in part finely shagreened; 
median groove absent to well developed; scutellum rather irregularly 
rugose, a bit flattened along a median line, with large, broad, not deep, 
indefinite foveae which are weakly sculptured and minutely roughened 
and only poorly separated ; abdomen dark ruf o-piceous, more rufous 
toward and on the hypopygium; the hypopygial spine of moderate 
weight; legs bright to dark rufous and black, the tarsal claws of 
moderate weight, distinctly toothed; wings long, about 1.35 of the body 
in length; the first abscissa of the radius with a short, projecting, 
infuscated point; the second abscissa curved mostly toward the tip, with 
or without a triangulate tip; radial cell moderately long, of moderate 
