Species of the Polistes (Polistella) (Hymenoptera: Vespidae: Polistinae) from Vietnam, with description of a new species and a pictorial key

Abstract

Twenty seven species of the subgenus Polistella Ashmead, 1904 are recorded from Vietnam. Polistes chuyangsin Nguyen & Nguyen sp. nov. and its nest are described and figured. A pictorial key to Vietnamese species of the subgenus is provided.