Selis, Marco. “Revision of the Afrotropical Genus Zetheumenidion Bequaert (Hymenoptera: Vespidae: Eumeninae)”. Zootaxa 5406, no. 1 (February 2, 2024): 37–65. Accessed May 2, 2025. https://www.mapress.com/zt/article/view/zootaxa.5406.1.2.