Oliveira, S. C. D. S. C. D., R. S. Gomes, R. B. Lopes, and O. T. Silveira. “A Review of the Zethus pallidus Smith Species Group, With Phylogenetic Analysis and Description of Eight New Species (Hymenoptera, Vespidae, Eumeninae)”. Zootaxa, vol. 5737, no. 4, Dec. 2025, pp. 451-93, doi:10.11646/zootaxa.5737.4.1.