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Indiana University Studies 
the eyes, darker to blackish on the median ridge and on the mouthparts; 
thorax rich rufous, blackish in many places especially between the parap- 
sidal grooves and about the lateral lines; foveal groove sometimes 
smoother than the rest of the scutellum, hardly rugose, without a divi- 
sion into foveae; abdomen dark rufous, in part blackish, occasionally 
wholly black; the clouded patches in the discoidal cell less distinct than 
in variety echinus; length 1.5 to 3.5 mm., averaging nearer 3.0 mm. 
Figure 175. 
GALL. — Squash-shaped, an irregular, truncated cone attached by 
its smaller end, flaring distally, with 5 to 11 short, spiny projections 
from the rim of the distal end of the gall; mature galls pale pink, often 
with a puberulence which makes them more violet in color. On leaves 
of (usually) Quercus lobata , rarely on Q. Douglasii. Figures 154-159. 
RANGE. — California: 5 miles north of Upper Lake (galls, Hilde- 
brand and Schulthess in Kinsey coll.). Konocti Bay in Lake County, 
and Napa County 12 miles southeast of Middletown (Schulthess and 
Hildebrand in Kinsey coll.). Inskip and Vina (galls, Leach in Kinsey 
coll.). Scott Valley in Lake County (gall, P. Schulthess in Kinsey 
coll.). 7 miles southeast of Kelseyville (Hildebrand in Kinsey coll.). 
Kelseyville (P. Schulthess in Kinsey coll.). Clear Lake, Napa, and 
Diablo (Leach in Kinsey coll.). Sonoma County (in U.S. Nat. Mus.). 
Sacramento (gall, in Kinsey coll.). Marin County (Koebele, types). 
Walnut Creek (C. T. Dodds in Kinsey coll.). Woodland (gall, L. Ewart 
in Kinsey coll.). Stanford University (McCracken in Mus. Comp. Zool.). 
Morgan Hill (gall, G. Reed & Z. Cunningham in Kinsey coll.). San 
Jose (Patterson acc. Fullaway 1911). Byron, Paso Robles and Three 
Rivers (Kinsey coll.). El Portal (gall, Silvestri in Kinsey coll.). Klink 
on St. Johns River, and Dinuba (L. H. Powell in Kinsey coll.). Han- 
ford (E. 0. Essig in Kinsey coll.). Tulare (0. E. Brown in Kinsey 
coll.). 
Probably thruout the Great Valley of California, wherever Q. lobata 
occurs. Figure 23. 
TYPES. — 7 females and numerous galls in the U.S. National Mu- 
seum, Cat. No. 3081. From Marin County, California; bred December 
19, 21, and 24, 1895; from Q. lobata (wrongly determined as Q. doug- 
lasii by Ashmead) . 
The present re-descriptions are studies of all the type material 
compared with numerous series from Central California. 
The gall of this agamic form is common on the valley white 
oak, Quercus lobata , thruout the Great Valley of California. 
The young galls appear late in June (June 28, 1927, near Kel- 
seyville, and July 6 at Diablo in 1922), and many of them 
are fully grown by the middle of August. Galls collected on 
September 10 (at Inskip in 1925) were fully grown, but the 
insects were still so young they could not be bred after col- 
lecting. The larvae mature sometime after the first of Oc- 
