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Callirhytis quercussuttoni
2222_3390 Photo added 2022-02-06

Callirhytis quercussuttoni (Hymenoptera: Cynipidae)
Knowland Park, Oakland, Alameda County, California
January 18, 2022

Adult gall wasp just emerged from root gall on Quercus agrifolia (coast live oak).

all photos and text © Joyce Gross