Maxillary palpus (a, a’ and aa), labial palpus of female (b, bb) and mandibles of male (c, cc, cc’). a–c Pterocheilus p. phaleratus (Panzer) a’ Pterocheilus c. chobauti Dusmet; aa–bb Onychopterocheilus mochii Giordani Soika cc Onychopterocheilus pallasii (Klug) cc’ Onychopterocheilus sp.

 
 
  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