Asthenopus (and Povilla) nymphs, head and mandibles. A–D left mandibles, d.v.: A A. curtus B A. angelae C A. magnus D Povilla adusta. E left mandible dorso-oclusal view, A. magnus. Right mandibles, d.v.: F A. angelae, G A. magnus H P. adusta. I–J, A. magnus head capsule, d. v., with and without mandibles.

 
 
  Part of: Molineri C, Salles FF, Peters JG (2015) Phylogeny and biogeography of Asthenopodinae with a revision of Asthenopus, reinstatement of Asthenopodes, and the description of the new genera Hubbardipes and Priasthenopus (Ephemeroptera, Polymitarcyidae). ZooKeys 478: 45-128. https://doi.org/10.3897/zookeys.478.8057