Nicholls, J.A., Stone, G.N. and Melika, G. 2018. A new genus of oak gallwasp, Protobalandricus Melika, Nicholls & Stone (Hymenoptera: Cynipidae: Cynipini) from California. Zootaxa. 4472, 1 (Sep. 2018), 141–152. DOI:https://doi.org/10.11646/zootaxa.4472.1.7.