Metasomal terga I-II (a, aa) and mesosoma (b, bb) in dorsal view, distal segments of antenna (c, cc). a, c Symmorphus bifasciatus (Linnaeus) b Symmorphus elegans aa–cc Ancistrocerus parietinus (Linnaeus).
Part of: 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