Taxonomy of the genus Epsilon from China, with a new species and an updated key to the Oriental species (Hymenoptera, Vespidae, Eumeninae) Author Zhang, Xue Author Chen, Bin Author Li, Ting-Jing text ZooKeys 2020 910 131 142 http://dx.doi.org/10.3897/zookeys.910.35846 journal article http://dx.doi.org/10.3897/zookeys.910.35846 1313-2970-910-131 DB7ADFD7B15D4C21BC03D6EC361FF8ED 898CB429A82252C79A35D6C089C9F0B1 Genus Epsilon de Saussure, 1855 Epsilon de Saussure 1855: 229, 252; Giordani Soika 1994 : 270-285; Girish Kumar et al. 2014 : 5380-5385. Type species. Odynerus dyscherus de Saussure, 1853, by subsequent designation of van der Vecht, 1967: 31. Diagnosis. Clypeus much wider than long, with sparse or dense punctures (Figs 2 , 13 ); cephalic fovea of female with two contiguous, deep pits (Figs 3 , 12 ); tegula with broad lobe posteriorly, almost equal to parategula (Figs 9 , 17 ); metanotum (Figs 7 , 21 ) narrow and very protruding, with a vertical posterior face, flat or gently convex, and a horizontal dorsal face; propodeum (Figs 7 , 21 ) short, without superior carina and with weak lateral carina; second submarginal cell with second recurrent vein nearly or completely interstitial with third submarginal cell (Figs 5 , 14 ); tergum I without transverse carina basally, very short, ca. 2 x as wide as long, and slightly narrower than tergum II (Fig. 20 ); tergum II (Figs 6 , 20 ) usually with apical lamella ( Giordani Soika 1994 ; Girish Kumar et al. 2014 ). Distribution. Oriental and Australian regions.