Five new species of Xiphinema cobb, 1913 associated with the fruit crops from north and north-eastern India

Five new species of Xiphinema viz., X. filicaudatum, X. digicaudata, X. gracilicaudatus, X. arunachalensis and X. pruni have been diagnosed, figured and reported. X. filicaudatum n.sp. is characterized by small arc like body, asymmetrical didelphic female gonads and ventrally curved, elongate tail with three pairs of caudal pores. X. digicaudata n.sp. collected around roots of orange at Gompa, Disc. Tawang, Arunachal Pradesh is distinctive by having ventrally arcuate body, continuous rounded head, anteriorly located vulva1 slit, with single opistho-delphic female gonad, tail dorsally convex conoid with digitate terminus. X. gracilicaudatus nsp. is characterized by having short ventrally curved body, dorsally curved tail less than three anal body width in length with a digitate terminus and protoplasmic core extending upto half of tail length. X. arunachalensis n.sp. is characterized by having an open C-shaped body with slightly constricted, continuous rounded head, female gonads short, tail subacute with a rounded terminus. X. pruni n.sp. isolated from soil around roots of apricot at Dehradun, U.P., is distinctive by having longer open C-shaped body with continuous elevated truncate head, presence of lateral body pores, didelphic female gonads, tail 1.3 times anal body width long and long non-protoplasmic region in tail measuring slightly less than one anal body width and less number of caudal pores.