TRICHODORUS SPECIES FROM CHINA, WITH A DESCRIPTION OF T-PARACEDARUS N-SP (NEMATA, TRICHODORIDAE)

Three Trichodorus species, T. paracedarus n. sp., T. cedarus Yokoo, 19 64 and T. pakistanensis Siddiqi, 1962, are reported from eastern China T. paracedarus n. sp. is characterized by the presence of three ventr omedian cervical papillae, almost straight or slightly ventrally curve d spicules with a finely striated shaft of about equal width, the loca tion of the posterior precloacal supplement (SP1) opposite tile distal third of retracted retracted spicules, strongly reduced pore-like SP2 and SP3, straight posterior body end with little developed copulatory muscles, the presence of a distinct bursa and the thickened terminal tail cuticle with a ventral indentation in the male; and by the usuall y triangular sclerotized vaginal pieces and the presence of a pair of lateral postadvulvar body pores in female. Morphometric data are given of some populations of T. cedarus and T. pakistanensis, which represe nt new records for China. Differences with the type populations and ot her formerly described populations of T. cedarus and T. pakistanensis are discussed.