Pratylenchus kumaoensis
Lal, Arjun and Khan, E., 1989
 10 Females (Paratypes):  L = 0.39-0.48 (0.44) mm; a = 25.0-29.0 (27.4); b = 5.8-6.5 (6.1); bí = 3.9-4.8 (4.5); c = 20.0-24.0 (21.2); cí = 2.0-2.5 (2.3); V = 81.0-82.5 (81.5); spear = 14.0-15.0 (14.5) um.
 Female (Holotype):  L = 0.42 mm; a = 25.8; b = 6.0; bí = 4.5; c = 20.0; cí = 2.3; V = 82.2; spear = 14.5 um.

 Female:  Body straight or slightly arcuate when killed by gentle heat.  Head almost continuous with body contour with 3 annules, heavily sclerotized skeleton extending to two annules.  Lateral field with four incisures arise in the level of metacarpus and continuous upto the posterior third of tail.  Stylet 14-15 um long with rounded basal knobs.  Opening of dorsal oesophageal gland 2.8-3.5 um posterior to spear-knobs.  Oesophagus typical of the genus.  Excretory pore located at 64-80 um from the anterior end of body and opposite to oesophago-intestinal junction.  Hemizonid distinct, anteriorly adjacent to excretory pore, extending 2-3 body annules.  Nerve ring encircling isthmus at about 56-63 um from anterior end.
 Vulva a transverse slit, 322-392 um from anterior end of body.  Spermatheca inconspicuous, without sperms.  Post uterine sac about 15-22 um long.
 Tail 20-23 um long i.e. 2.0-2.5 times anal body diameter and bearing 21-25 annules.  Tail terminus crenated.  Phasmids small, located at middle of tail.
 Male:  Not found.

Type habitat and locality:
 Roots and soil around Populus species at Forest Nursery, IVRI SubStation, Mukteshwar, Uttar Pradesh, India.
Type Material:
 Collected by the senior author in May, 1984.  Holotype (female) and Paratypes (5 females) deposited with National Nematode Collection, Division of Nematology, IARI, New Dehli.  Remaining specimens deposited at Nematology Section, P.O. Division, NBPGR, New Dehli.

 Pratylenchus kumaoensis sp. n. comes close to P. teres Khan & Singh, 1974 and P. crenatus Loof, 1960.  From P. teres it differs in having a smaller spear, more posteriorly located vulva and four incisures in the lateral field (P. teres:  spear = 17-18 um; V = 70-77; lateral field with 6 incisures).  From P. crenatus, it mainly differs in having four incisures in lateral field as against six lateral incisures in P. crenatus.