Sudesna shangrila Wang, Peng & Zhang, 2025, sp. nov.
Creators: name: Wang, Lu-Yu
name: Peng, Xian-Jin
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Dictynidae
Sudesna
Sudesna shangrila

description: Sudesna shangrila sp. nov.
Figs 11, 12, 15 (香格里拉苏蛛)
Type material.
Holotype ♂ (SWUC -T-DI-18-01); Yunnan Province; Shangrila, Tianshengqiao, Geothermal park; 27°47′53″N, 99°48′46″E; elev. 3406 m; 21 August 2009; Z. X. Li and L. Y. Wang leg. Paratypes: 1 ♂ 7 ♀, (SWUC -T-DI-18-02 to 09); same data as holotype.
Etymology.
The specific name is derived from the county where the type locality is located; used as a noun in apposition.
Diagnosis.
See the diagnosis of S. haiboi sp. nov.
Description.
Male holotype (Fig. 12 A) total length 2.30. Prosoma 1.04 long, 0.90 wide; opisthosoma 1.38 long, 0.86 wide. Dorsum of prosoma brown, with white high cephalic area. Eye sizes and interdistances: AME 0.05, ALE 0.07, PME 0.05, PLE, 0.07; AME – AME 0.12, AME – ALE 0.08, PME – PME 0.13, PME – PLE 0.13, ALE – PLE 0.03. MOA 0.18 long, anterior width 0.19, posterior width 0.24. Clypeus height 0.11. Chelicerae stout, yellow-brown, with 3 promarginal and 2 retromarginal teeth. Legs yellow brown. Leg measurements: I 2.94 (0.92, 0.99, 0.62, 0.41), II 2.83 (0.87, 0.95, 0.60, 0.41), III 2.25 (0.74, 0.72, 0.48, 0.31), IV 2.49 (0.77, 0.85, 0.58, 0.29). Leg formula: 1243. Opisthosoma oval. Dorsum yellowish brown, with white markings. Venter yellowish brown. Spinnerets short and yellowish brown.
Palp (Figs 11 A, B, 12 C – E). Tibia dorsally with 2 ctenidia, located 1 / 3 from distalmost part of tibia. Retrolateral tibia apophysis hook-shaped. Embolus semicircular, originating near the 9: 30 o’clock position, terminating at about the 4: 00 o’clock position. Anterior arm of conductor (AA) membranous and terminating near the 12: 00 o’clock position; posterior arm (PA) slightly twisted with a pointed, scaly tip.
Female paratype (SWUC -T-DI-18-02, Fig. 12 B) total length 3.76. Prosoma 1.36 long, 1.13 wide; opisthosoma 2.64 long, 1.97 wide. Dorsum of prosoma yellowish brown, with white high cephalic area. Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.06, PLE, 0.07; AME – AME 0.16, AME – ALE 0.12, PME – PME 0.17, PME – PLE 0.16, ALE – PLE 0.04. MOA 0.21 long, anterior width 0.25, posterior width 0.29. Clypeus height 0.12. Legs yellowish brown. Leg measurements: I 3.48 (1.09, 1.16, 0.75, 0.48), II 3.47 (1.05, 1.15, 0.70, 0.47), III 2.90 (0.94, 0.98, 0.64, 0.34), IV 3.51 (1.12, 1.25, 0.80, 0.34). Leg formula: 1243. Opisthosoma oval. Dorsum yellowish brown, with white scaly markings. Venter yellowish brown. Spinnerets short and yellowish brown.
Epigyne (Figs 11 C, D, 12 F, G). Copulatory openings nearly spiral, facing away from each other, separated by about 4 times their width. Copulatory ducts short, slightly sclerotized. Spermatheca cylindrical; spermathecal heads round. Fertilization ducts thin, semicircular, and directed laterally.
Variation.
Male (n = 2) total length 2.06–2.30; female (n = 7) total length 2.65–3.76.
Distribution.
Known only from the type locality, Yunnan, China (Fig. 15).
description: Published as part of Wang, Lu-Yu, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2025, Six new species and a new synonym of the mesh-web spider genus Sudesna Lehtinen, 1967 (Araneae, Dictynidae) from China, pp. 127-149 in ZooKeys 1234 on pages 127-149, DOI: 10.3897/zookeys.1234.145300