Genus Filenchus
Andrassy, 1954
Syn.:
 Tylenchus (Filenchus) Andrassy, 1954
   Ottolenchus Husain & Khan, 1965
   Dactylotylenchus Wu, 1968
   Lambertia Brzeski, 1977
   Discotylenchus Siddiqi, 1979
   Zanenchus Siddiqi, 1979
   Duosulcius Siddiqi, 1979
Diagnosis (from Raski and Geraert, 1986)
Tylenchinae. Head sclerotization delicate, stylet usually <15um; cone less than half total stylet length. Transverse striae usually extend onto head up to small labial plate which is squarish with rounded corners; four cephalic sensilla present or absent. Amphidial apertures usually elongate slits begining near oral disc or at edge of labial plate, extending laterally through three or four head annuli; rarely small elliptical aperture confined to labial plate. Body annuli fine to coarse. Lateral field two lines setting off a single plain band or three or four lines. Tail elongate conoid, curved or straight, to effilate/filiform even hair-like in outline.

DNA Sequences Obtained
Specimen: Collected:
KonzaVII EE-78 Konza Prairie, First survey

Type species
Filenchus vulgaris (Brzeski, 1963) Lownsbery and Lownsbery, 1985
  F. conicephalus (Siddiqi and Khan, 1963) Raski and Geraert, 1986

Species found:     at:
F. acutus Konza Prairie
F. afghanicus Konza Prairie, Haughton Crater
F. annulatus Konza Prairie
F. aquilonius Konza Prairie, Haughton Crater
F. baloghi Konza Prairie
F. butteus Konza Prairie, Haughton Crater
F. compositus Konza Prairie, Haughton Crater
F. cylindricaudus Konza Prairie, Haughton Crater
F. cylindricollis Konza Prairie, 9 Mile Prairiedddd
F. cylindricus Konza Prairie, 9 Mile Prairie
F. discrepans Konza Prairie
F. ditissimus Konza Prairie, 9 Mile Prairie, Haughton Crater,  Homestead
F. exiguus Konza Prairie, 9 Mile Prairie
F. facultativus Konza Prairie
F. hamatus Konza Prairie, 9 Mile Prairie
F. helenae Konza Prairie
F. magnus Konza Prairie
F. marinus Konza Prairie
F. microdorus Konza Prairie
F. neonanus Konza Prairie
F. plattensis Konza Prairie, 9 Mile Prairie
F. quartus Konza Prairie
F. sandneri Konza Prairie
F. sheri Konza Prairie
F. teres Konza Prairie
F. terrestris Konza Prairie
F. thornei Konza Prairie, 9 Mile Prairie, Haughton Crater
F. vulgaris  Konza Prairie, Haughton Crater

Species List(from Ebsary, 1991)