Schematical fore wing line drawing for characters of couplet 4. A Rs+M and pterostigma short (couplet 4a); B Rs+M and pterostigma elongate (couplet 4b).

 
 
  Part of: Brazidec M, Legendre F, Perrichot V (2023) Diversity and phylogeny of the extinct wasp subfamily Lancepyrinae (Hymenoptera, Bethylidae) revealed by mid-Cretaceous Burmese amber. Arthropod Systematics & Phylogeny 81: 345-369. https://doi.org/10.3897/asp.81.e96737