Genus Ogma
Southern, 1914
Syn.: Croserinema Khan, Chawla & Saha, 1976
Macrocriconema Minagawa, 1986
Orphreyus Siddiqi, 2000
Pateracephalanema Mehto & raski, 1971
Pellipecten Siddiqi, 1986
Pseudocriconema Minagawa, 1984
Seriespinula Mehto & Raski, 1976 (Khan, Chawla & Saha, 1976)
Syro Orton Williams, 1985
Variasquamata  Mehto & Raski, 1971 (Khan, Chawla & Saha, 1976)
Photo Gallery- Turfgrass
Diagnosis:  Criconematinae.
Female- 0.24-0.86 mm long, with 50-94 annules.  Annules wavy in outline, with scale-like outgrowths broadly rounded at tip or with one to five spine-like projections, and arranged in 8-21 longitudinal rows on most of body.  Cephalic region offset, with one or two annules which may be smooth, crenate or lobed; anterior annule often larger than posterior; submedian lobes usually present.  Stylet 48-125 um.  Vulva closed, lips conical, 3-19 annules from terminus.  Tail conical or rounded.  Males with three or four incisures in lateral field and 28-47 um long arcuate spicules.  Fourth stage juveniles with scales arranged in longitudinal rows.
(Description- Siddiqi, 2000)

Species found:        at:
O. decalineatum Konza Prairie, 9-Mile Prairie