Figure 39 from: Tan J-L, Carpenter JM, van Achterberg C (2018) An illustrated key to the genera of Eumeninae from China, with a checklist of species (Hymenoptera, Vespidae). ZooKeys 740: 109-149. https://doi.org/10.3897/zookeys.740.22654

Figure 39 Head in frontal view (a, aa), part of meso- and metasoma (b, d, bb, dd), part of mesosoma in dorsal view (c, cc) and distal part of forewing (ee). a–d Stenodyneriellus guttulatus (de Saussure) aa–ee Epsilon dyscherum (de Saussure).