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Callirhytis quercussuttoni
2222_3373 Photo added 2022-02-05

Callirhytis quercussuttoni (Hymenoptera: Cynipidae)
Pinole, Contra Costa County, California
October 12, 2017

Stem gall caused by gall wasps on Quercus agrifolia. Gall dissected with larvae and pupae visible in larval cells.

all photos and text © Joyce Gross