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For Insects, Spiders & Their Kin
For the United States & Canada
Photo#699180
Disholcaspis quercusmamma? - Disholcaspis quercusmamma

Disholcaspis quercusmamma? - Disholcaspis quercusmamma
Pheasant Branch Conservancy, Middleton, Dane County, Wisconsin, USA
September 2, 2012
On a bur oak twig.
Any guesses on what opened the galls?

Moved
Moved from ID Request.
I would say rodents or birds too. Hard to tell from the photo whether or not there are tooth marks.

Maybe
squirrels? Or birds?