New data on cave spiders (Arachnida: Araneae) of Iran, with new species and records Author Zamani, Alireza Zoological Museum, Biodiversity Unit, FI- 20014 University of Turku, Turku, Finland. Author Darvishnia, Hamid Department of Biology, Payame Noor University, Tehran, Iran. Author Marusik, Yuri M. Institute for Biological Problems of the North, FEB RAS, Portovaya Str. 18. Magadan 685000, Russia. & Altai State University, Lenina Pr., 61, Barnaul, RF- 656049, Russia. & Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa. text Zootaxa 2023 2023-11-02 5361 3 345 366 https://www.mapress.com/zt/article/download/zootaxa.5361.3.3/52195 journal article 10.11646/zootaxa.5361.3.3 1175-5326 10084538 D9AE18C9-A265-44F0-A0AF-E663A59B2EAF Mesiotelus iranicus Zamani & Marusik , sp. n. Fig. 14A–D Type material. Holotype ♀ ( ZMUT ), IRAN : Lorestan Province : Kuhdasht , Mir Melas Cave , 33°39'07.9"N , 47°32'16.7"E , 1708 m , 23.V.2016 ( H. Darvishnia ). Etymology. The specific epithet is an adjective, referring to the type locality of the new species in Iran . Diagnosis. The new species differs from all of the congeners by having fenestra ( Fe , = windows) on lateroposterior part of the epigyne ( vs . lacking). FIGURE 13. Expanded bulb of Scotargus pilosus . A ventral view; B dorsal view. Scale bar: 0.2 mm. Description. Female. Habitus as in Fig. 14A . Total length 6.53. Carapace 2.33 long, 1.83 wide. Eye sizes: AME 0.19, ALE 0.13, PME 0.11, PLE 0.12. Carapace, chelicerae, sternum, labium and maxillae light yellowish brown. Chelicerae with 2 pro- and 2 retromarginal teeth. Legs slightly lighter than carapace. Abdomen beige, without any pattern. Spinnerets uniformly light brown. Measurements of legs: I: missing, II: 7.82 (2.06, 1.05, 2.02, 1.65, 1.04), III: 6.34+missing tarsus (1.94, 0.95, 1.60, 1.85, missing), IV: 10.70 (2.72, 1.23, 2.60, 3.00, 1.15). Spination: Palp: Fm: 2d; Ti: 2d, 4pl; Ta: 1d, 3pl, 2v. Legs: I: missing. II: Fm: 2d, 1pl; Ti: 2-2v; Mt: 2v. III: Fm: 2d, 1pl, 1rl; Ti: 1d, 2pl, 2rl, 4v; Mt: 3pl, 3rl, 6v. IV: Fm: 2d, 1pl, 1rl; Ti: 4d, 2pl, 2rl, 7v; Mt: 15t . Epigyne as in Fig. 14B–D ; epigynal plate ca. 1.3 times longer than wide; anterior hood ( Ah ) as long as wide; fovea ( Fo ) diamond-shaped; receptacles ( Re ) oval, spaced by 0.5 of their width, as wide as fenestra ( Fe ) posteriorly; copulatory ducts ( Cd ) short and wide, slightly longer than wide, ca. 0.5 of receptacle’s length, spaced by 0.5 of their width. Male. Unknown. Distribution. Known only from the type locality in Mir Melas Cave ( Fig. 16B ), Lorestan Province , southwestern Iran ( Fig. 17 ).