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Indiana University Studies 
no smoother anteriorly; the foveal groove of moderate width; sparingly 
rugose at bottom and more or less indefinitely divided into foveae; 
mesopleuron mostly smooth and finely, sparingly, evenly punctate; ab- 
domen naked except for the patches latero-basally, strongly produced, 
the second segment extending three-quarters of the way to the pos- 
terior tip of the abdomen; wings long, about 1.30 times the body length; 
the infuscation on the first abscissa of the radius light brown, rather 
limited in extent; areolet large; length 2.7 to 3.6 mm. Figure 400. 
GALL. — Rosy red to rosy brown in color; up to 10.0 mm., averag- 
ing nearer 7.5 mm. in diameter, the spines up to 2.5 mm. in length, stiff, 
straight, stout, the bases up to 0.5 mm. in diameter, tapering rather 
gradually; the whole suggesting a sea urchin; on the leaves of Quercus 
undulata, Q. Toumeyi, Q. grisea, and Q. arizonica. Figures 304, 330. 
RANGE. — New Mexico: Blue Canyon west of Socorro (types, Weld 
coll.). Nogal Canyon south of Socorro (acc. Weld 1926). Kingston 
(Kinsey coll.). Hillsboro (galls, Kinsey coll.). Burro Mountains (galls, 
acc. Weld 1926). 
Arizona: Ashfork (galls, acc. Weld 1926). Prescott (Kinsey coll.; 
also W. W. Jones in Kinsey coll.). Safford (Kinsey coll.). Hackberry 
and Patagonia (acc. Weld 1926). 
Probably confined to the southern two-thirds of Arizona and New 
Mexico (and adjacent Mexico). Figure 59. 
TYPES. — Holotype and 4 paratype females and 8 galls in the U.S. 
National Museum, Cat. No. 27184. Paratype female and galls at the 
American Museum of Natural History, one female and galls in the Field 
Museum, and in Stanford University. A gall in the Kinsey collection. 
The holotype and some paratypes from Blue Canyon near Socorro, New 
Mexico; November 7; Q. undulata; Weld collector. Other paratypes 
from Hackberry, Arizona, Q. undulata , Weld collector; still others from 
Patagonia, Arizona; Q. Toumeyi; Weld collector. 
The present re-descriptions are based on the holotype and paratypes 
in the National, Field, and American Museums. 
This variety has a wide range over the southern two-thirds 
of New Mexico and Arizona, and shows no segregation into 
distinct varieties on Q. undulata , Q. grisea , Q. arizonica, or 
Q. Toumeyi. 
Weld cut live adults out of galls collected near Socorro, New 
Mexico, on November 7 (in 1921), and had others emerge 
December 31 and January 13. One adult from Patagonia, 
Arizona, emerged December 13. From galls which I collected 
in Arizona at Safford on January 18 and at Prescott on Jan- 
uary 23 (in 1920) all but the last adults had already emerged. 
The galls Mr. W. W. Jones collected in March (1924) were 
empty. 
