Philonix californica, sp. nov.
Gall. — On the upper surface of the leaves of a species of white oak. Monothalamous. Rounded, flattened disc-like, becoming slightly elevated toward the middle. The sides are flat and very thin, and the gall rests closely on the leaf. The larva lives in the center of the elevated part. The color is pinkish or purplish, with the apex sometimes yellowish. Width, 3 to 4 mm. Height, 1 mm.
Habitat — Kern Co., California, January.
Type — United States National Museum. Described from five females.
”- William Beutenmuller: (1911) Descriptions of New Species of Cynipidae©
Reference: https://www.biodiversitylibrary.org/item/84930#page/29/mode/1up