Oompsodryoxenus brunneus Ashmead.
Gall. (Plate LI, Figs. 9-13.) On the branches of oak (Quercus chrysolepis). Polythalamous. Very hard, ovate or elongate woody swellings.
Habitat. California.
The types are in the United States National Museum.
”- William Beutenmuller: (1909) Some North American Cynipidæ and their Galls©