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