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Dryocosmus asymmetricus
2222_1371 Photo added 2007-08-19

Dryocosmus asymmetricus (Hymenoptera: Cynipidae)
Split Twig Gall Wasp
Redway, Humboldt County, California
August 3, 2007

On Quercus chrysolepis (canyon live oak). Photo shows close-up of individual larval chambers inside the twig; the holes are where adult wasps have exited.

all photos and text © Joyce Gross