Kinsey : Gall Wasp Genus Cynips 
245 
Cynips (Philonix) plnmbea Weld 
agamic form 
Figures 36, 200, 225-226, 235-236, 246 
Cynips plumbea Weld, 1926, Proc. U.S. Nat. Mus. 68 (10) : 64, fig. 12. 
FEMALE. — Almost the entire body light brownish rufous, darker 
to brown only on the very tips of the antennae and on the tarsal claws, 
the anterior parallel and lateral lines and the abdomen ventrally brown- 
ish rufous, darker than the rest of the body; the thorax, abdomen, and 
wings of normal size; the parapsidal grooves narrow but distinct and 
continuous; the anterior parallel and lateral lines merely indicated as 
smoother, more naked areas; the scutellum rugose, distinctly elongate, 
anteriorly depressed to form the broad, roughly rugose and entirely 
undivided foveal groove; the scutellum anteriorly emarginate; the ab- 
domen not greatly produced dorsally, with the sides of all the abdominal 
segments punctate and moderately hairy, the surfaces of the posterior 
segments more closely punctate to finely rugose; the wings normal, 1.17 
times the body in length, the veins yellowish brown, the first abscissa 
of the radius of moderate weight and angulate with a slightly project- 
ing tip, the second abscissa of the radius slender, somewhat curved 
toward the tip, the tip abruptly triangulate or bent; the areolet of 
moderate size, variable; all of the cells without spots or blotches except 
for traces of a blotch at the base of the third cubital cell and another 
nearer the tip of the same cell (these spots not evident in all speci- 
mens) ; length of the insect 2.7 to 4.6 mm. Figures 235, 236, 246. 
GALL. — Spherical, thin-walled, brownish, naked, the centrally- 
placed larval cell imbedded in spongy or more compact tissue. Mono- 
thalamous; up to 11.0 mm., averaging nearer 8.0 mm. in diameter. 
Strictly spherical except for the broadly flattened base; not at all shriv- 
elled when old; the gall greenish or rose-tinged when young, becoming 
lead color with a bluish gray bloom that is easily wiped off and largely 
wears off the older galls, exposing the brownish tan color of the older 
galls; the surface all but microscopically smooth and naked except for 
the deciduous bloom. The outer wall of the gall moderately thin but 
firm because it is inseparable from the rest of the gall; the gall inter- 
nally more or less compact-crystalline, in some cases indicating a more 
fibrous structure, the larval cell central, closely embedded and entirely 
inseparable from the compact material of the gall. Attached by a fine 
point, singly on the main veins, usually underneath the leaves, on 
Quercus oblongifolia and Q. arizonica (and related southwestern oaks?). 
Figures 200, 225-226. 
RANGE. — Arizona: Globe (var.? galls, Q. arizonica, Kinsey coll.). 
Whetstone (galls, Q. arizonica, Kinsey coll.). Oracle (Q. arizonica, 
Weld and Kinsey coll.). Santa Catalina Mountains (M. Chrisman acc. 
Weld 1926). Esperara Canyon in Santa Catalina Mountains (types; 
Q. oblongifolia; Hofer and Edmonston coll.). Sabino Trail in Santa 
Catalina Mountains ( Q . oblongifolia, Q. arizonica; Kinsey coll.). Santa 
