Cynipidae

Callirhytis

Quercus ilicifolia

Connecticut

Delaware

Kentucky

Maine

Maryland

Massachusetts

New Hampshire

New Jersey

New York

North Carolina

Pennsylvania

Rhode Island

Vermont

Virginia

West Virginia

Ontario

Callirhytis q-ilicifolia-pip-gall (agamic)

Quercus ilicifolia
Acorn galls
Fig 74 [refers to [Callirhytis perditor](https://www.gallformers.org/gall/780), listed separately for this host]. A pip gall in Sept. on acorns of current season. Adults emerged the second spring. Never described.

Cynipid galls of the eastern United States

It is not entirely clear based on the current literature and available observations whether there is one, two, or more species of acorn pip galls on first-year acorns of Quercus ilicifolia. Only one, [Callirhytis perditor](https://www.gallformers.org/gall/780), is described, and the descriptions and images of this species are sufficiently ambiguous that they could feasibly apply to all known observations. Bassett and Weld list this species as a spring gall, but Beutenmuller implies that it matures in the fall. Weld lists a distinct undescribed species (this entry) on Q ilicifolia in the fall, but indicates the same image listed for C perditor, and gives no way to distinguish this gall other than phenology. None of the descriptions of either gall mention spots, which are frequently and prominently observed on pip galls on Quercus ilicifolia. Until further research is conducted to settle the question, all observations on Q ilicifolia may be tentatively assigned to C perditor. 

Gallformers ID Notes