Sunol Regional Park, Sunol, Alameda County, California, USA October 7, 2006 Size: 25mm longest length
A small mass of Andricus crystallinus galls on Quercus douglasii (blue oak).
Also on this leaf are two other species of cynipid galls: Andricus atrimentus (Striped Volcano Gall Wasp) and Liodora pattersonae (Plate Gall Wasp)
Contributed by Joyce Gross on 12 September, 2007 - 1:12am
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