Lenis longiabdominis Irfan, Zhang & Peng, sp. n.
Creators: name: Irfan, Muhammad
name: Zhou, Gu-Chun
name: Peng, Xian-Jin
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Thomisidae
Lenis
Lenis longiabdominis

description: Lenis longiabdominis Irfan, Zhang & Peng, sp. n.
(ẗDzxe)
Figures 121–124, 313
Types. Holotype ♂, CHINA, Hubei Prov.: Badong Co., Yanduhe Town, Songziyuan Vill., 31.33400°N, 110.42625°E, 1340 m, 28.IV.2016, W. Liu et al. leg. Paratypes: 14♂ 1♀, with same data as for holotype; 2♂ 1♀, Badong Co., Yanduhe Town, Songziyuan Vill., 31.35278°N, 110.39937°E, 1836 m, 27.IV.2016, W. Liu et al. leg.; 1♀, Enshi Co., Xingdou MNNR, 30.04166°N, 109.13377°E, 1253 m, 18.V.2017, G.C. Zhou et al. leg. (HNU–HB– IV–1710).
Etymology. The specific epithet is derived from the Latin adjective “longus” meaning “long” and noun “abdomen” in genitive case, referring to the long opisthosoma.
Diagnosis. See diagnosis of the genus.
Description. Male (holotype, Figs 122C, 124C).Total length: 4.47. Carapace 1.69 long, 1.13 wide, yellowish brown, cervical, fovea and radial grooves distinct. Clypeus 0.41 high. Chelicerae dorsal margin with small outgrowths provided with setae, with five promarginal and five retromarginal teeth. Sternum longer than wide, yellow with microsetae, mid ventrally with round black patch. Eyes: AER recurved, PER straight, slightly wider. Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.07, PLE 0.07, AME–AME 0.05, PME–PME 0.09, AME–ALE, 0.09, PME–PLE 0.10, AME–PME 0.13, ALE–ALE 0.48, PLE–PLE 0.52, ALE–PLE contiguous. Length of legs: I 17.15 (4.16, 4.99, 5.92, 2.08), II 12.53 (3.28, 3.55, 4.12, 1.58), III 6.59 (1.81, 1.85, 2.03, 0.90), IV 10.01 (2.84, 2.74, 3.29, 1.14). TmI 0.78, TmIV 0.82. Tibial spine formula: 2-2-2-2. Opisthosoma 2.78 long, 0.86 wide, cylindrical, pale to yellowish, with alternative brown and irregular white patches followed by black patch on lateral side; ventral side pale with few irregular white patches and posteriorly with a patch of fine fine setae near the base of spinnerets.
Palp (Figs 121A–D, 122A, B): Femur almost equals to the collective length of patella, tibia and cymbium. Patella shorter than tibia, dorsally with a long thick spine. Tibia conic, with two retrolateral and one dorsal trichobothria, with several long spines; cymbium unmodified, oval in dorsal view; proximal part of paracymbium (PC) somewhat rectangular with several spines, distal arm long, transparent with protruding tip; tegulum (T) with rounded protrusion as tegular apophysis on latero-apical margin pointing in anterior direction; distal suprategular apophysis (DSA) tongue-like, dorsal tip hook-shaped. Lamella with five apophyses. Terminal apophysis (TA) reduced, thumb-shaped, barely seen on unexpended palp. Median membrane (MM) finger-like, transparent. Embolus (E) simple, distal part curved.
Female (one of the paratypes, Figs 124D, E): Total length: 4.58. Carapace 1.50 long, 1.06 wide, pale, cervical, fovea and radial grooves distinct. Clypeus 0.30 high. Chelicerae with five promarginal and five retromarginal teeth. Sternum longer than wide, pale with microsetae, mid ventrally with round black patch. Eyes: AER recurved, PER procurved, slightly wider. Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.09, PLE 0.09, AME–AME 0.04, PME–PME 0.06, AME–ALE, 0.06, PME–PLE 0.08, AME–PME 0.10, ALE–ALE 0.42, PLE–PLE 0.45, ALE–PLE contiguous. Length of legs: I 11.19 (2.95, 3.25, 3.36, 1.63), II 9.23 (2.48, 2.66, 2.75, 1.34), III 5.61 (1.64, 1.59, 1.57, 0.81), IV 7.12 (2.39, 2.22, 1.47, 1.04). TmI 0.73, TmIV 0.69. Tibial spine formula: 2-2-2-2. Opisthosoma 3.08 long, 1.43 wide, cylindrical, all other morphological character same as in male, except pale to dusky grey in color.
Epigyne (Figs 123A–D): Scape (SC) protruding, robust, longer than wide, ventral socket absent. Copulatory openings (CO) narrow, present posteriorly. Anterior wall mid ventrally with a tuft of thick spines. Spiral ducts (SD) with 2.5 turns; turning points (TP) and spermathecae present at apex anteriorly; spermathecae (S) present anteriorly at the apex of spiral ducts, pointing away from each other.
Distribution. Known only from the type locality (Hubei Province, Fig. 313).
description: Published as part of Irfan, Muhammad, Zhou, Gu-Chun, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2025, Survey of Linyphiidae spiders (Arachnida: Araneae) from some Oriental Regions of China, pp. 1-248 in Megataxa 15 (1) on pages 92-93, DOI: 10.11646/megataxa.15.1.1, http://zenodo.org/record/14985176