One new genus and nineteen new species of ground spiders (Araneae: Gnaphosidae) from Iran, with other taxonomic considerations Author Zamani, Alireza A21C0B82-E2D9-4402-9408-D6160843DAF4 Zoological Museum, Biodiversity Unit, University of Turku, FI- 20014, Finland. Department of Molecular Biology and Genetics, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece. Perm State University, Bukireva Street 15, Perm, 614600, Russia. Institute for Biological Problems of the North RAS, Portovaya Str. 18, Magadan, 685000, Russia. Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa. zamani.alireza5@gmail.com Author Chatzaki, Maria 2FBB48ED-84FE-4386-8F47-C958E9F8A2A1 maria.chatzaki@gmail.com Author Esyunin, Sergei L. 2B591857-5FAB-4B7D-B589-6C4977A3A493 Sergei. Sergei.Esyunin@psu.ru Author Marusik, Yuri M. F215BA2C-5072-4CBF-BA1A-5CCBE1626B08 yurmar@mail.ru text European Journal of Taxonomy 2021 2021-06-04 751 1 68 114 http://dx.doi.org/10.5852/ejt.2021.751.1381 journal article 6279 10.5852/ejt.2021.751.1381 4e3af683-d8a6-40de-991b-c4584d66b8cc 2118-9773 4906007 1D27EA41-2396-463A-B1B2-0CCF79C9F3D2 Gnaphosa qamsarica sp. nov. urn:lsid:zoobank.org:act: 571ED6FD-935D-4527-8581-FEBD31C996E5 Fig. 10 Diagnosis The new species differs from all Palearctic congeners by the widely separated lateral margins not converging posteriorly, and widely separated receptacles leaving an open atrium with parallel rims (vs receptacles almost touching and lateral margins converging posteriorly). Furthermore, it differs by the presence of short copulatory ducts, almost vertical and in line with the receptacles (vs bent copulatory ducts parallel to the receptacles). The species most similar to G . qamsarica sp. nov. are: G. cumensis Ponomarev, 1981 , G. halophila Esyunin & Efimik, 1997 , G. jucunda Thorell, 1875 , G. saurica Ovtsharenko, Platnick & Song, 1992, G. ukrainica Ovtsharenko, Platnick & Song, 1992 and G. zeugitana Pavesi, 1880 . The last one is the most similar in that the copulatory ducts are almost in line with the receptacles and the receptacles are widely separated. However, G. qamsarica sp. nov. differs from G. zeugitana by the parallel lateral margins and the rectangular atrium (vs triangular). Etymology The specific epithet is an adjective and refers to the type locality of the new species. Type material Holotype IRAN • ♀ Isfahan Province , Qamsar & Barzok Protected Area , 55 km SW of Qamsar , 14 km NE of Kamoo , near the road of Gargash observatory ; 33°37′ N , 51°19′ E ; 2710 m a.s.l. ; 19 May 2016 ; P. Ponel leg.; MHNG . Description Female Habitus as in Fig. 10H . Total length 4.78. Carapace 1.79 long, 1.45 wide. Eye sizes and interdistance of PMEs: AME = 0.07, ALE = 0.09, PME = 0.09, PLE = 0.08, PME–PME = 0.04. Carapace, chelicerae, sternum, maxillae and labium dark brown; carapace with a distinct V-shaped mark, separating pars cephalica from pars thoracica. Chelicerae ( Fig. 10G ) with 2 promarginal teeth and a serrated bifurcate retromarginal keel. Legs lighter than carapace, with few spines. Abdomen light brown, without any markings. Spinnerets light brown and uniform in color. Measurements of legs: I: 4.29 (1.15, 0.73, 0.96, 0.74, 0.71), II: 4.13 (1.12, 0.72, 0.85, 0.73, 0.71), III: 3.60 (0.98, 0.57, 0.65, 0.78, 0.62), IV: 5.40 (1.39, 0.79, 1.08, 1.26, 0.88). Epigyne as in Fig. 10A–F . Atrium rectangular; lateral margins ( Lm ) parallel, as long as scape; copulatory ducts almost as broad as receptacles, parallel to each other (i.e., almost vertical); receptacles oval and in line with copulatory ducts, separated by one receptacle width; glands indistinct. Fig. 10. Gnaphosa qamsarica sp. nov. , holotype, ♀ (MHNG). A, C, E . Epigyne, ventral view. B, D, F . Epigyne, dorsal view. G . Chelicerae, posterior view. H . Habitus, dorsal view. Abbreviation: Lm = lateral margin. Scale bars: 0.1 mm, unless stated otherwise. Male Unknown. Distribution Known only from the type locality in Isfahan Province , central Iran .