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Disholcaspis prehensa
2222_2344 Photo added 2012-02-16

Disholcaspis prehensa (Hymenoptera: Cynipidae)
Clasping Twig Gall Wasp
Mt Hamilton Rd near summit of Mt Hamilton, Santa Clara County, California
September 25, 2011

Stem galls on scrub oak (Quercus berberidifolia).

all photos and text © Joyce Gross