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Indiana University Studies 
Probably extending little beyond an area including Mendocino and 
Lake Counties and a narrow border about the Central Valley of Cal- 
ifornia. Figure 33. 
TYPES. — 4 females, 9 galls. Holotype female and galls in the 
Kinsey collections. Galls at the U.S. National Museum. Labelled Kel- 
seyville, California; galls November 1, 1925, and September 26, 1926; 
Q. durata; P. Schulthess collector. 
This is the more widespread variety of the species, occur- 
ring on Q. durata and Q. dumosa in Lake County and other 
points of the same faunal area. The types are from Q. durata, 
but our five insects from Scott Valley from Q. dumosa seem 
inseparable from the types, and it is not surprising to find 
that these closely related oaks have not affected an isolation 
of distinct varieties within this faunal area. 
Galls collected by Miss Hildebrand near Kelsey ville on July 
26 (1927) were young and for the most part small, nearly 
solid, and without the loosened epidermis of the older galls. 
A few of the galls of that same collection were, however, of 
nearly full size. Mr. Leach found full-sized but immature galls 
on August 3 (in 1924), and his material collected on Septem- 
ber 2 (in 1923) was nearly enough mature to allow adults to 
develop in our breeding bags. The Scott Valley material 
collected October 2 (in 1926) emerged on December 18 (out- 
of-doors at Bloomington, Indiana). None of the adults had 
yet emerged from the galls Miss Schulthess collected on 
November 1 (in 1925), but the insects from this material 
were found emerged and dead on the following January 20. 
The Highland Springs material, collected in the middle of 
November, emerged on January 21 (1927). The San Mateo 
County material, collected by Morrison in December, from 
which he reared an adult “the next summer,” was probably 
abnormal in development, due to some factor in the method of 
breeding. 
Cynips (Besbicus) mirabilis Kinsey 
agamic forms 
FEMALE. — Head distinctly narrower than the thorax, rufous, 
sometimes darker in places; the fourth antennal segment quite long; 
the thorax large, heavy, and broad, fully as high as long, three-quarters 
again as long as wide; anterior parallel lines rather distinct; scutellum 
rather broad, not coarsely rugose, with broad, rather deep, indefinite 
