The authors give a description of Xiphinema lupini sp. n. It was found
in the rhizosphere of yellow lupin (Lupinus luteus L.) at Herdade dos
Barroes, Coucco, Coruche, province of Ribatejo, Portugal. The new spe
cies is characterized by two female genital branches equally developed
, vulva almost at mid-body, a rudimentary pseudo-Z-organ, spiniform st
ructures in the uterus, tail regularly short conical and male abundant
. X. lupini sp. n. is similar to X. conurum Siddiqi, 1964 and X. itali
ae Meyl, 1953 from which it differs mainly in having uterine different
iations.