Morphological and molecular characterisation, and phylogenetic position of X. browni sp. n., X. penevi sp. n. and two known species of Xiphinema americanum-group (Nematoda, Longidoridae)

Xiphinema browni sp. n., X. parasimile, X. pachtaicum and X. penevi sp. n. Female and male: A–D Anterior ends E–H Labial region I–K Pharyngeal bulbs L, M, R Male tails N–Q Female tails A, E, I, M, N X. browni sp. n. B, F, K, O, R X. parasimile C, G, J, L, P X. pachtaicum D, H, Q X. penevi sp. n. Scale bars: 30 μm (A–D, I–R); 12 μm (E–H).