Oligoneuriopsis lawrencei, ventral view of lower abdomen of adult male, showing lateral extensions of segment IX, gonostyli and penes. Black arrow: Apex of the lateral longitudinal lobe of penis. Grey arrow: Proximal process of penis. Scale bar 0.5 mm.

 
 
  Part of: Barber-James HM, Zrelli S, Yanai Z, Sartori M (2020) A reassessment of the genus Oligoneuriopsis Crass, 1947 (Ephemeroptera, Oligoneuriidae, Oligoneuriellini). ZooKeys 985: 15-47. https://doi.org/10.3897/zookeys.985.56649