AMPHIBOLIPS ACUMINATA, new species

Gall.--The mature specimens of this species average considerably over 2 inches long by more than an inch in diameter; they are brownish yellow, subglobular, and acuminated at apex, constructed on the same principle as most of the apple galls, having a central kernel, held in place by a spongy substance, and a very thin shell. Some specimens are much more acuminated than others and what may be termed pepper-shaped, not more than half an inch in diameter and much less than 2 inches in length. The gall is attached to the twigs.

One female specimen, reared June 24, 1879. The gall occurs in Washington on Quercus niger. The specimen from which the fly was reared was taken by Dr. L. O Howard in Maryland.

- William Ashmead: (1896) Descriptions of new Cynipidous Galls and Gall-Wasps in the United States National Museum^©

Reference: https://www.biodiversitylibrary.org/page/7294914#page/150/mode/1up