Redescription of a little-known spider species, Mesiotelus lubricus (Simon, 1880) (Aranei: Liocranidae) from China Author Fu, Jianying Author Zhang, Feng Author Zhu, Mingsheng text Arthropoda Selecta 2008 17 3 169 173 journal article 10.5281/zenodo.815376 de3eeca6-9a34-4bb6-a70a-74ed158c9f57 815376 Mesiotelus Simon, 1897 Mesiotelus Simon, 1897 :143 ; Song, Zhu & Chen, 2001 : 304. Type species: Cheiracanthium tenuissimus L. Koch, 1866 , by original designation. DIAGNOSIS. The presence of a long male palp (especially long tibia and patella) distinguishes the genus Mesiotelus from other liocranid genera. The genus Mesiotelus presumably has close affinities with the Palearctic genus Liocranum and the Nearctic genus Hesperocranum on the basis of potentially derived genitalic characters: male palpal tibia with a prolateral lobe and epigynum with a similar conformation, including an anterior hood and posterior spermathecal sacs and ducts [ Ubick & Platnick, 1991 ]. Mesiotelus can be distinguished from Hesperocranum by: tibiae and metatarsi I, II with interspersed typical spines and relatively few pairs of ventral bristles ( Fig. 7 ), while the latter without spine and with numerous pairs of ventral bristles on tibiae and metatarsi I—III ; epigynum with single hood anteriorly, while the latter with a bipartite hood; also Mesiotelus can be further distinguished from Hesperocranum by having recumbent, feathery leg setae, and the male with prognathous chelicerae. Mesiotelus is also very similar to the Liocranum , but can be distinguished from the latter by: metatarsi I, II with only one pair of long ventral spines, while the latter has two or three pairs of long ventral spines; epigynum with a single small, half-moon shaped hood anteriorly, while the latter often has a large and variously shaped hood; also Mesiotelus can be further distinguished from Liocranum by having fewer pairs of ventral bristles on tibiae and metatarsi I, II.