Leptochilus (Lionotulus) argentifrons (Kostylev, 1935) ♂ 10 habitus in dorsal view 11 head in frontal view 12 part of antenna 13 vertex and pronotum 14 propodeum in posterior view 15, 16 metasoma in lateral view.

 
 
  Part of: Bai Y, Chen B, Li T-J (2024) A newly recorded genus Microdynerus Thomson, 1874 and a review of its related genus Leptochilus de Saussure, 1853 (Hymenoptera, Vespidae, Eumeninae) from China. Journal of Hymenoptera Research 97: 57-83. https://doi.org/10.3897/jhr.97.112108