216 
Indiana University Studies 
cubitus meets the basalis and at the break in the discoidal vein; length 
1.5 to 2.1 mm. Figures 164, 171, 188. 
GALLS. — Slender, long, up to 8.0 mm. in length, the stalk nearly 
twice the length of the swollen portion of the gall, the swollen portion 
slender to broad spindle-shaped, drawn out into a slender point apically; 
on leaves of Quercus lobata. Figures 142-143. 
RANGE. — California: Yorkville and Clear Lake (galls, Leach in 
Kinsey coll.). Kelseyville (P. Schulthess in Kinsey coll.). Sonoma and 
Napa Counties (types; Koebele coll.). Napa (galls, Leach in Kinsey 
coll.; also J. C. Bradley acc. Weld 1926). Sacramento (in Mus. Comp. 
Zook). Chico, Calistoga, Stockton, Kaweah, and Levee (galls, acc. Weld 
1926). Concord (C. T. Dobbs in Kinsey coll.). Mt. Diablo (Leach in 
Kinsey coll.). Palo Alto (Wiltz in Stanf. Univ.). Sierra foothills east 
of Dinuba, and St. Johns River near Klink (L. H. Powell in Kinsey 
coll.). 
Confined perhaps to a narrow area rimming the Central Valleys of 
California, probably limited to Q. lobata. Figure 28. 
TYPES. — 12 females and galls studied by Beutenmiiller ; additional 
material from the same collection more recently recovered in the U.S. 
National Museum. Holotype and paratype females and galls at the U.S. 
National Museum; paratypes or material from the same lot at the 
Museum of Comparative Zoology, in the Beutenmiiller collection (?), 
and in the Kinsey collection. From Sonoma and Napa Counties, Cali- 
fornia; Q. lobata (!); A. Koebele collector. 
The holotype and most of the paratype material was examined in 
making the present re-descriptions. 
This distinctive gall is never abundant, but it is usually in- 
cluded in collections made in the autumn on the Valley white 
oak of the foothills rimming the Central Valleys of California. 
The young galls begin development in August (acc. Weld), 
and are fully grown by the middle of September (September 
12 in 1921 at Concord). Galls collected as early as October 
4 (in 1925 at Kelseyville) had very large larvae in them. 
Most of the insects 1 have bred have emerged during the first 
half of January, but the Kelseyville material emerged between 
January 29 and February 5, 1926. McCracken and Egbert 
record January emergence for indoor breeding. 
All of the material I have examined has come from Q. 
lobata , and if this or a related variety ever occurs on Q. Doug- 
lasii it would appear to be rare. In the original description 
Beutenmiiller’s host record ran “a species of white oak (prob- 
ably Quercus douglasi).” He corrected this to “Quercus 
lobata ” in his subsequent treatment of the genus Dryophanta. 
