Xiphinema insigne Loos, 1949 and X-hunaniense Wang & Wu, 1992 from Hangzhou, China, and synonymization of X-savaryi Lamberti, Troccoli & Agostinelli,1997 with X-insigne, and X-siamense Lamberti, Troccoli & Agostinelli, 1997with X-radicicola Goodey, 1936 (Nematoda : Longidoridae)

Descriptions and illustrations are given for five populations of X. insigne from five different hosts and for a population of X, hunaniense from Camel lia japonica, each occurring in the Hangzhou region, China. Both species ha ve four juvenile development stages (JDS) and morphometrics of the second, third and fourth JDS are presented. The study, which includes a morphologic al comparison of several long-tailed Xiphinema species, confirms a proposal to reject the synonymization of X. hunaniense with X. radicicola. Also, th at X. savaryi be considered a junior synonym of X. insigne and that X. siam ense be considered a junior synonym of X. radiciciola.