Quercus imbricaria
Acorn galls
Like Fig 72 [Callirhytis balanoides]. Seen at Poplar Bluff, MO. Sept 4. Never reared.
- LH Weld: (1959) Cynipid galls of the eastern United States©
Reference: https://www.biodiversitylibrary.org/item/273718#page/67/mode/1up