Nguyen, L.T.P., Kojima, J.-I. and Saito, F. 2011. Polistes (Polistella) wasps (Hymenoptera: Vespidae: Polistinae) from mountainous areas of northern Vietnam, with description of five new species. Zootaxa. 3060, 1 (Oct. 2011), 1–30. DOI:https://doi.org/10.11646/zootaxa.3060.1.1.