Genus Flannerystrongylus Smales, 2019. Body sections. A–C Flannerystrongylus abulus Smales, 2019. A, A’ within proximal body, female. B, C at midbody. B male, C female. D–E’ Flannerystrongylus chisholmae Smales, 2020. D–E’ at midbody. D, D’ male. E, E’ female. Abbreviation: cu, cuticle. Sources: A–C redrawn from [42]; D, E redrawn from [43]. A’, B’, D’, E’: modified figures: A’ rotation clockwise, re-numbering of ridges with respect to the original. B’ rotation clockwise. D’, E’ addition of external cuticular lining. D’ re-numbering of ridges.