Melika, G., & Nicholls, J. A. (2021).

A new genus of Nearctic oak gall wasp, Grahamstoneia Melika & Nicholls, gen. nov. (Hymenoptera: Cynipidae, Cynipini)

. Zootaxa, 4999(5), 456–468. https://doi.org/10.11646/zootaxa.4999.5.4