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Callirhytis quercussuttoni
2222_3369 Photo added 2022-01-31

Callirhytis quercussuttoni (Hymenoptera: Cynipidae)
Gouty Stem Gall Wasp
Knowland Park, Oakland, Alameda County, California
November 6, 2021

Image shows a dissected gall with adult wasp visible in larval chamber. There's a second wasp somewhat visible in the foreground. Host is Quercus agrifolia (coast live oak).

all photos and text © Joyce Gross