Genus Scutylenchus Jairajpuri 1971

Diagnosis (emended from Siddiqi 2000): Belonolaiminae . Small to medium-sized (0.5–1.5 mm), arcuate to curved when relaxed. Lateral field usually bearing 6 incisures in lateral view, occasionally 4 or 10–12 incisures. Body cuticle formed into blocks by longitudinal striae or grooves. Cephalic region offset, with six radial grooves, with 6–7 annuli, and moderate sclerotization; labial disc inconspicuous, four-lobed. Median bulb near middle of oesophagus or more anterior. Vulva in a cavity or depression, with epiptygma. Vagina vera sub-square in lateral view. Female tail conoid to subcylindrical with rounded or pointed tip; terminal tail cuticle abnormally thickened, may or may not be annulated; spicules slender; gubernaculum crescent-shaped in lateral view.

Type species: Scutylenchus mamillatus (Tobar-Jiménez 1966) Jairajpuri 1971 syn. Tylenchorhynchus mamillatus Tobar-Jiménez 1966

Merlinius mamillatus (Tobar-Jiménez) Anderson 1977

Geocenamus mamillatus (Tobar-Jiménez) Brzeski 1991

Other species*:

S. baluchiensis Maqbool, Ghazala, Fatima & Qasim 1985

S. boghiae (Choi & Geraert 1993) Siddiqi 2000

S. brevicaudatus Peng & Hunt 1995

S. dongtingensis n. sp.

S. hexincisus (Jairajpuri & Baqri 1968) Siddiqi 1979

S. koreanus (Choi & Geraert 1971) Siddiqi 1979

S. laminatus (Wu 1969) Anderson & Ebsary 1982

S. lenorus (Brown 1956) Siddiqi 1979

S. longus (Wu 1969) Skwiercz 1984

Syn. Tylenchorhynchus longus Wu 1969

Merlinius longus (Wu) Sturhan 1981

Pathotylenchus longus (Wu) Eroshenko & Volkova 1987 Geocenamus longus (Wu) Brzeski 1991

S. myungsugae (Choi & Geraert 1993) Siddiqi 2000

S. paniculoides (Vovlas & Esser 1990) Siddiqi 2000

S. patternus (Eroshenko & Volkova 1987) comb. n. Syn. Geocenamus patternus Eroshenko & Volkova 1987

S. quadrifer (Andrássy 1954) Siddiqi 1979

S. rugosus (Siddiqi 1963) Siddiqi 1979

S. siddiqii (Mulk 1978) Skwiercz 1984

S. sobolevi (Mukhina 1970) Siddiqi 1979

S. sphaerocephalus Ivanova 1982

S. squamatus (Eroshenko & Volkova 1988) comb. n. Syn. Geocenamus squamatus Eroshenko & Volkova 1988

S. stegus (Thorne & Malek 1968) Siddiqi 1979

S. tartuensis (Krall 1959) Siddiqi 1979

S. tessellatus (Goodey 1952) Siddiqi 1979

S. thomasi Skwiercz 1984

S. tumensis Skwiercz 1984

S. variabilis Ivanova & Shagalina 1983

[*Other synonymy as in Siddiqi (2000)]