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Feron atrimentum (Hymenoptera: Cynipidae) Striped Volcano Gall Wasp Sunol Regional Park, Sunol, Alameda County, California September 14, 2013 Two wasp galls on a leaf. Host is Quercus douglasii (blue oak).
Two wasp galls on a leaf. Host is Quercus douglasii (blue oak).
