Mesosoma and part of metasoma (a, aa), terminal sternum of male (b, bb). a, b Delta campaniforme gracile (de Saussure), arrow = spiracle aa, bb Phimenes f. flavopictus (Blanchard).

 
 
  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