O. Polašek, I. Onah, T. Kehinde, V. Rojo, S. V. Noort, and J. M. Carpenter, “Revision of the mainland African species of the Old World social wasp genus Ropalidia Guérin-Méneville 1831 (Hymenoptera; Vespidae)”, Zootaxa, vol. 5626, no. 1, pp. 1–142, Apr. 2025.