Disholcaspis edura, new species

Hosts: Quercus oblongifolia, arizonica, toumeyi, reticulata [rugosa]

Gall: A bullet gall in clusters of 3-6 on twigs, sessile, rounded at end, yellowish, up to 12 mm in diameter. Larval cell basal, its wall unusually thick and hard, persisting after the soft distal tissue has weathered away.

Habitat: The types are from galls collected at Nogales, Ariz., Nov. 14, 1939, on Quercus oblongifolia Torr. Adults emerged Jan. 11 to Feb. 11, 1940. Paratypes are from galls collected at Magdalena, N. Mex., Nov. 9, 1921, then containing adults which emerged December 31. One paratype is from Patagonia, Ariz., and one from Oracle, Ariz. These galls have been noted also on Quercus toumeyi Sarg. and Q. reticulata Humb. & Bonpl.

Adults emerged December 31.

- LH Weld: (1957) New American Cynipid Wasps From Oak Galls^©

Reference: https://www.biodiversitylibrary.org/item/114064#page/143/mode/1up