Plesiodorus Siddiqi, 1976
Female: Labial region rounded, striated (rarely smooth), weakly
offset, rounded to roughly quadrangular in en face view; labial disc generally
not prominent; amphid aperture small slit dorso-ventrally directed. Lateral
field with four lines. Stylet long (50-140 um), strong. Tail short, hemispherical,
rarely conical. Phasmids adanal or slightly anterior to anus.
Male: Spicules not or weakly flanged. Gubernaculum apparently