Callirhytis vacciniifoliae, new species
Gall
A thin-shelled, globular gall with a central kernel held in place by radiating filaments. It closely resembles the gall produced by Andricus inanis (Osten-Sacken), but it is generally smaller in size and darker in color. The gall measures from 0.5 to just over 1 inch in diameter and is found on Quercus vacciniifolia in California.
Four specimens were reared on October 16 and December 4, 1884, from galls collected by Prof. J. H. Comstock at Truckee, California, on Quercus vacciniifolia.
”- William Ashmead: (1896) Descriptions of new Cynipidous Galls and Gall-Wasps in the United States National Museum©
Reference: https://www.biodiversitylibrary.org/item/31780#page/154/mode/1up