Nicholls, J.A., Melika, G., Demartini, J. and Stone, G.N. 2018.

New species of Dryocosmus Giraud gallwasps from California (Hymenoptera: Cynipidae: Cynipini) galling Chrysolepis Hjelmq. (Fagaceae)

. Zootaxa. 4532, 3 (Dec. 2018), 407–433. DOI:https://doi.org/10.11646/zootaxa.4532.3.6.