Quercus dumosa
Leaf galls, detachable
Swollen in middle, cell central with a distal cavity, 8-11 mm. Under. Fig 181.
Fig 181. Unknown. On under side of leaf on a vein, 8–11 mm. long, swollen in center. Cell central with a distal cavity. On Q-garryana. Occurs on Q.dumosa also. Contained full-grown larvae Sept. 8 (Sequoia National Park).
”- LH Weld: (1957) Cynipid Galls of the Pacific Slope©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018313555&view=1up&seq=88