A NEW GENUS OF HOPLOLAIMINAE: PLESIOROTYLENCHUS STRIATICEPS N.GEN., N.SP. (NEMATODA: TYLENCHIDA) BY N. VOVLAS1), P. CASTILLO2) and F. LAMBERTI1) 1) Istituto di Nematologia Agraria, Consiglio Nazionale delle Ricerche, Via Amendola 165/A, 70126 Bari, Italy; 2) Instituto de Agronomia y Proteccion Vegetal, Consejo Superior de Investiga- ciones Cientificas, Apartado 3048, 14080 Cordoba, Spain The ectoparasite Plesiorotylenchus striaticeps n. gen., n. sp., obtained from the rhizosphere of grapevines at Osman, Turkey, is described. The new genus is close to Rotylenchus Filipjev, 1936, but differs from it and is characterized by the presence of a lip region with longitudinal striae radially disposed and a rectangular labial disc. Plesiorotylenchus n. gen. is considered as Hop- lolaiminae because of the short and rounded tail with annulation following its contour, phasmids near anus, strong stylet and labial framework. Bursa not indented terminally. Plesiorotylenchus striaticeps n. sp. is characterized by a truncate lip region in profile with 35-40 longitudinal striae, C-shaped habitus and oesophageal gland overlapping intestine with three gland nuclei. Keywords: Hoplolaiminae, new genus, new species, scanning electron microscopy (SEM), spiral nematode, taxonomy. Soil samples collected at Osman (Turkey) from the rhizosphere of grapevines contained numerous specimens of an ectoparasitic species which, at first
Nematologica – Brill
Published: Jan 1, 1993
Keywords: new genus; spiral nematode; taxonomy; scanning electron microscopy (SEM); Hoplolaiminae; new species
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