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Photo added 2012-10-14

Hymenoptera: Cynipidae
Club Vein Gall Wasp
Angelo Coast Range Reserve, Mendocino County, California
June 17, 2012

Leaf gall on canyon live oak (Quercus chrysolepis). This gall is pictured in Weld 1957 (Figure 99) and Russo 2006 (Plate 158) but the wasp that causes the gall has never been scientifically described.