Kinsey : Gall Wasp Genus Cynips 
205 
The present form is distinct from all other bisexual forms 
of echinus in having parapsidal grooves which are more or less 
obscured anteriorly. The galls of this form agree with the 
galls of the agamic form in being almost free of the projecting 
points found in most of the other varieties of the species. 
Cynips (Antron) guadaloupensis (Fullaway) 
agamic forms 
FEMALE. — Head slightly wider than the thorax; antennae dark 
brown with the first two segments brownish rufous; thorax somewhat 
reduced, rufous and darker; mesonotum closely rugoso-punctate and 
hairy, the parapsidal grooves very fine, extending not more than half- 
way to the pronotum; anterior parallel lines barely indicated; the lat- 
eral lines more evident but short and fine; scutellum distinctly narrow 
and elongate; abdomen rufous brown and darker; wings shortened, 
from 0.46 to 0.80 of the body in length, with a reduced venation that 
is incomplete beyond the first abscissa of the radius; areolet closed; the 
cells without spots or blotches; length 2.0 to 2.9 mm. 
GALL. — Naked, smooth and shining, from circular and disk-like 
to deep bowl-shaped with a flattened cover, or compressed pouch-shaped. 
Up to 13.0 mm., averaging nearer 5. mm. in diameter, the galls more 
or less regular, without spines or other projections; the surface entirely 
smooth and naked; the young galls purplish rose, in part leaf green, 
with a light purplish puberulence, the apical rim of the galls some- 
times bright red; the older galls straw yellow to yellowish brown and 
darker, without the puberulence. The outer wall of the gall rather 
thin, soft and flexible when fresh, hard, crystalline and brittle when 
dry; with a large, centrally placed larval cell that is usually nearer the 
apex than the base of the gall, the cell with a poorly defined and in- 
separable cell wall. The gall attached by a slight, centrally placed pro- 
jection, singly or in small groups, usually on the under surfaces of the 
leaves but sometimes on the upper surfaces; on the veins of the leaves 
of Quercus chrysolepis, Q . Wilcoxii, and probably all of the varieties of 
these oaks. 
RANGE. — Known from southern Oregon to southern California 
and southern Arizona. Probably occurring from Washington into Lower 
California, Guadalupe Island, and southern Arizona, wherever Q. 
chrysolepis and its close relatives occur. Figure 27. 
This is the Quercus chrysolepis species of the subgenus An- 
tron . The gall is rather common on the canyon oak in the 
mountains of California, but the adult is represented by only 
a few specimens in our collections, apparently because the 
galls have not been collected at a season when they were suit- 
