N. T. P. Lien, T. T. Ngat, and H. G. Minh, “Taxonomic notes on the genus Pseumenes Giordani Soika, 1935 (Hymenoptera: Vespidae: Eumeninae) from Vietnam with key to all known species in the Oriental region”, Zootaxa, vol. 4822, no. 2, pp. 293–299, Aug. 2020.