Unknown gall.
Quercus chrysolepis
Leaf galls, integral
Many cells in the inrolled edge of leaf. Fig 130.
Fig 130. Q. chrysolepis. Galls collected on old leaves under tree in April, May, July and September were empty.
”- LH Weld: (1957) Cynipid Galls of the Pacific Slope©
Reference: https://babel.hathitrust.org/cgi/pt?id=coo.31924018313555&view=1up&seq=85