Cicurina chengkou Wang, Mu, Yang & Zhang, 2024, sp. nov.

Cicurina chengkou sp. nov. Figs 1, 2, 7 Vernacular name: 城口洞叶蛛 Type material. Holotype • ♂ (SWUC -T-CI-10-01), China, Chongqing City, Chengkou County, Longtian Town, Wuli Village, Daba Mountain National Nature Reserve, 32°03.836'N, 108°40.238'E, elev. 1275 m, 21 March 2013, X. K. Jiang and X. W. Meng leg. Paratype • 1 ♀ (SWUC -T-CI-10-02), with same data as for holotype (SWUC). Etymology. The specific name is derived from the type locality. Diagnosis. The new species is similar to C. dabashan sp. nov. (Figs 3, 4) in having wide and short retrolateral tibial apophysis, long and strong embolus, strong and beak-like conductor, posteriorly located epigynal atrium and ball-shaped spermathecae, but differs from the latter by the long RTA (Figs 1 B, 2 Е) (vs. short in C. dabashan sp. nov.), the apical part of conductor as long as the width of conductor base (Figs 1 A, B, 2 C – E) (vs. about half the length of conductor base in C. dabashan sp. nov.) and the oblong atrium (Figs 1 C, 2 F) (vs. somewhat oval in C. dabashan sp. nov.), the short copulatory duct (Figs 1 D, 2 D) (vs. long in C. dabashan sp. nov.). Description. Male holotype (Fig. 2 A) total length 4.02. Carapace 2.09 long, 1.75 wide; opisthosoma 1.78 long, 1.35 wide. Eye sizes and interdistances: AME 0.06, ALE 0.12, PME 0.10, PLE, 0.11; AME – AME 0.05, AME – ALE 0.04, PME – PME 0.09, PME – PLE 0.07, ALE – PLE 0.04. MOA 0.23 long, anterior width 0.18, posterior width 0.30. Clypeus height 0.21. Chelicerae with 3 promarginal and 8 retromarginal teeth. Leg measurements: I 5.74 (1.63, 1.98, 1.27, 0.86); II 5.32 (1.55, 1.80, 1.16, 0.81); III 4.78 (1.38, 1.54, 1.13, 0.73); IV 6.23 (1.63, 2.06, 1.62, 0.92). Leg formula: 4123. Palp (Figs 1 A, B, 2 C – E). Femur long, two times longer than cymbium, without modified. Tibia slightly longer than patella. Retrolateral tibial apophysis wide, with a single fold and rounded apex. Base of retrolateral tibial apophysis with two small apophyses, extending ventrally and dorsally. Bulb circular, tegulum semicircular, with a distinct process at middle part in prolateral and ventral view. Sperm duct obvious. Embolus strong, originating at approximately 9 - o’clock position, anterior part resting in the long groove of conductor. Conductor strong, with a sharp end. Female paratype (Fig. 2 B) total length 3.51. Carapace 1.76 long, 1.23 wide; opisthosoma 1.86 long, 1.38 wide. Eye sizes and interdistances: AME 0.05, ALE 0.10, PME 0.08, PLE, 0.10; AME – AME 0.05, AME – ALE 0.02, PME – PME 0.08, PME – PLE 0.06, ALE – PLE 0.03. MOA 0.22 long, anterior width 0.15, posterior width 0.27. Clypeus height 0.14. Leg measurements: I 4.67 (1.39, 1.65, 0.95, 0.68); II 4.28 (1.23, 1.44, 0.94, 0.67); III 3.91 (1.15, 1.31, 0.93, 0.52); IV 5.26 (1.48, 1.76, 1.30, 0.72). Leg formula: 4123. Epigyne (Figs 1 C, D, 2 F, G). Atrium oval. Copulatory openings located lateral of atrium. Copulatory ducts straight and short, about half length of spermathecae diameter. Spermathecae kidney shaped. Fertilization ducts hook-like. Distribution. Known only from the type locality (Fig. 7).