Melika, G. , Pujade-Villar, J. , Nicholls, J.A. , Cuesta-Porta, V. , Cooke-Mcewen, C. and Stone, G.N. 2021.

Three new Nearctic genera of oak cynipid gall wasps (Hymenoptera: Cynipidae: Cynipini): Burnettweldia Pujade-Villar, Melika & Nicholls, Nichollsiella Melika, Pujade-Villar & Stone, Disholandricus Melika, Pujade-Villar & Nicholls; and re-establishment of the genus Paracraspis Weld

. Zootaxa. 4993, 1 (Jun. 2021), 1–81. DOI:https://doi.org/10.11646/zootaxa.4993.1.1.