Imaginal and nymphal structures of I. ignota A nymph (dorsal view) B gill VII C forewing of male D hindwing of male E subanal plate of female (ventral view) F body of male imago (dorsal view) G foreleg of male H male genitalia (ventral view) I penes (dorsal view) J membranous processes (ventral view).

 
 
  Part of: Qiang X-H, Zhou C-F (2023) A preliminary review of Isonychia Eaton, 1871 from Chinese mainland with a re-description of I. kiangsinensis Hsu, 1936 (Insecta, Ephemeroptera, Isonychiidae). ZooKeys 1178: 115-141. https://doi.org/10.3897/zookeys.1178.104619