The authors give a description of Xiphinema gersoni sp. n. It was foun
d in the rhizosphere of Lolium sp. at Herdade da Daroeira, Odemira, Po
rtugal. X. gersoni sp. n. is characterized by two equally developed fe
male genital branches, vulva slightly anterior to mid-body, a well dev
eloped pseudo-Z-organ, small spine-like structures in the uterus, tail
short conical with digitate terminus and presence of male. The new sp
ecies is similar to X. aequum Roca & Lamberti, 1988, X. belmontense Ro
ca and Pereira, 1991, X. coxi europaeum Sturhan, 1985, X. dissimile Ro
ca, Pereira and Lamberti, 1988, X. diversum Roca, Lamberti, Santos & A
brantes, 1989, X. lusitanicum Sturhan, 1983 and X. pseudocoxi Sturhan,
1985.