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Dryocosmus dubiosus (Hymenoptera: Cynipidae) Two-horned Gall Wasp Anthony Chabot Regional Park, Alameda County, California February 11, 2007 Each gall about 2.5mm. On Quercus agrifolia (coast live oak) leaf.
Each gall about 2.5mm. On Quercus agrifolia (coast live oak) leaf.
