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Photo#882331
Callirhytis quercusagrifoliae? - Callirhytis quercusagrifoliae

Callirhytis quercusagrifoliae? - Callirhytis quercusagrifoliae
UC Davis Arboretum, Davis, Yolo County, California, USA
January 5, 2014
On a Quercus agrifolia bud, I had another older one which clearly showed a single round exit hole, but I lost it before I could take pictures...

agrifolia
Note that this would be a different species if it were on a white oak. Thanks for the reliable host plant IDs!

Moved
Moved from Unidentified Galls.

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Moved from ID Request.

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