Feron atrimentum (Hymenoptera: Cynipidae) Striped Volcano Gall Wasp Mt Diablo State Park, Contra Costa County, California May 22, 2014 Host is Quercus douglasii (blue oak). This is the spring, bisexual generation gall of this species.
Host is Quercus douglasii (blue oak). This is the spring, bisexual generation gall of this species.