Longidorus cheni sp. n. Female: A Odontophore region B Amphidial fovea shape C Reproductive system D–E Vulval region F Sperms inside uteri I Oviduct separated by sphincter G Tail region L Ovary. Male: H Tail end J Spicule K Testis with sperms. Scale bars: 20 µm (A, B, E, G, H, J); 100 µm (C); 50 µm (D, F, I, K, L).