Genus Gracilacus
Raski, 1962

Paratylenchinae.
 Female: Small, under 0.5 mm, vermiform or swollen in prevulval region. Labial framework weakly sclerotized. Stylet long (41-119 um), flexible. Excretory pore from level of base of stylet to level of nerve ring. Annuli smooth, more rarely (three species) with small tubercles.

 Juvenile: Resembling female. Stylet generally present, well developed.

Species found:      at:
G. acicula Konza Prairie
G. aculenta Konza Prairie, Homestead