Pratylenchus agilis
(Thorne and Malek, 1968 description) L = 0.5 mm; V = 76
Lateral field marked by 4 incisures. Lip region with two annules, sometimes
very indistinct. Cephalic framework massive. Spear 16u-18u long with strong
knobs slightly cupped. Vulva elevated. Vulva-anus distance about 3 times
tail length. Tail uniformly tapering to rounded terminus.
Pratylenchus agilis is most closely related to P. scribneri
from which it differs in coarser striae, hemispheroid spear knobs and uniformly
tapering tail. Its chief characteristic is the habit of throwing itself
into a coil and moving violently when touched, entirely unlike the torpid
actions of other members of the genus.