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Andricus chrysolepidicola
2222_2301 Photo added 2012-02-08

Andricus chrysolepidicola (Hymenoptera: Cynipidae)
Irregular Spindle Gall Wasp
Mt Diablo State Park, Contra Costa County, California
August 7, 2011

Stem gall on blue oak (Quercus douglasii).

all photos and text © Joyce Gross