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Photo#1331334
Cynipidae, Oak vein gall - Kokkocynips rileyi

Cynipidae, Oak vein gall - Kokkocynips rileyi
Weaver Dunes, Wabasha County, Minnesota, USA
August 24, 2013
on the underside of an oak leaf
perhaps this
oak leaf photo is for ID purposes

Images of this individual: tag all
Cynipidae, Oak vein gall - Kokkocynips rileyi Black Oak gall - Kokkocynips rileyi

Moved
Moved from Unidentified Galls.

As far as I know that's right. I've personally only ever seen these on Q. rubra. Not sure exactly what your host oak is, but it seems like something on the Q. rubra/velutina continuum.

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