WELD 706.
Host. — Quercus gambelii Nuttall and probably other Rocky Mountain oaks.
Gall.— Cluster of several dozen hairy brown cells that are probably fleshy when fresh, at end of vigorous etiolated shoots coming up under loose stone piles or under mass of humus. It is probably a spring gall. The clusters measure up to 2-3 cm. in diameter.
Habitat. — Collected old galls in July, 1916, at Trinidad, Colorado; Las Vegas, and Rito de los Frijoles near Buckman, New Mexico; Grand Canyon and Flagstaff, Arizona.
”- LH Weld: (1921) American gallflies of the family Cynipidae producing subterranean galls on oak©
Reference: https://www.biodiversitylibrary.org/page/7562993#page/296/mode/1up