toward the periphery; cells oval, averaging 1.5 by 0.8 mm., but varying in size; cells with a distinct, shell-like lining which is not, however, separable. On Quercus lobata.
- Range.—California: Byron.
- Types.—Over 200 females and 49 clusters of galls. Holotype female, paratype females, and galls in the collections of The American Museum of Natural History; paratype females and galls in Leland Stanford University, the U. S. National Museum, and the author's collection. Labelled Byron, California; March 19, 1920; Kinsey collector.
This species shows a considerable variation in the size of the adults, the color of the legs, and the size of the arcolet. All of the material, which gave almost eight hundred adults, was collected from a single tree; the smaller individuals appear structurally and almost entirely in regard to color indentical with the largest individuals, and what differences do exist show all the intermediate stages in still other individuals. So I have no doubt that these variations are all within a single species, but to avoid any chance of confusion I have sorted out a series of the largest individuals as paratypes.
Adults emerged March 21, a couple of days after collecting the galls.
