Pareumenes caoduong, Nguyen, 2020

Nguyen, Lien Thi Phuong, 2020, A new Vietnamese species and a key to the Oriental species of Pareumenes (Nortonia) de Saussure, 1855 (Hymenoptera: Vespidae: Eumeninae), Raffles Bulletin of Zoology 68, pp. 588-594 : 590

Subgenus Nortonia de Saussure, 1869

As noted in Giordani Soika (1938: 111) and van der Vecht (1963: 17), the subgenus Nortonia differs from the subgenus Pareumenes in the parastigma being shorter than the stigma, and the gastral petiolate being shorter and wider. However, in Pareumenes caoduong , new species, described below, and Pareumenes taiwanus ( Sonan, 1937), the only one species in the subgenus Nortonia has been recorded from the Oriental region, the parastigma is slightly longer than the stigma ( Fig. 8 ), and the parastigma is much longer than stigma in the subgenus Pareumenes ( Fig. 11 ).

Figures

Figs. 7–12. Pareumenes caoduong, new species, holotype, female (7–9). 7, Metasomal terga in lateral view; 8, Forewing; 9, Habitus. Pareumenes quadrispinosus acutus Liu, 1941, female (10–12). 10, Head in frontal view; 11, Forewing; 12, Habitus. Scale = 1 mm.