Trachyjulus bifidus sp. n., A–C ♀ paratype from Linno Gu n°1 Cave D–U ♂ paratype from Linno Gu n°1 Cave. A, B anterior part of body, lateral and dorsal views, respectively C collum and body ring 2, dorsal view D, E head, anterior and ventral views F anterior part of antenna, ventral view G bacilliform sensilla on antennomere 5, lateral view H tip of antenna I base of antennomere 5, lateral view J, K, O midbody rings, lateral, dorsal and ventral views, respectively L midbody ring, dorsal view M midbody prozona, dorsal view N cross-section of a midbody ring P claws of midbody legs Q midbody porostele, dorsal view R–U, posterior part of body, lateral, dorsal and ventral views, respectively.