Thomisus yarang Wang, Lu & Zhang 2024, sp. nov.
Creators: name: Wang, Lu-Yu
name: Mu, Yan-Nan
name: Lu, Qian-Le
name: Xu, Yong-Qiang
name: Bu, Hai-Tao
name: Zhang, Feng
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Thomisidae
Thomisus
Thomisus yarang

description: Thomisus yarang Wang, Lu & Zhang sp. nov.
Figs 3 K – L, 10, 11
Type material.
Holotype • ♂ (SWUC -T-THO-06-01), China, Xizang, Medog County, Medog Town, Yarang Village, 29°17.758'N, 95°16.827'E, elev. 761 m, 28 June 2018, L. Y. Wang, Z. S. Wu and Y. N. Mu leg. Paratypes: • 1 ♂ 1 ♀ (SWUC -T-THO-06-02 and SWUC -T-THO-06-02 - 03), same data as for holotype.
Etymology.
The specific name is derived from the type locality; it is a noun in apposition.
Diagnosis.
The new species resembles T. labefactus Karsch, 1881 (Song and Zhu 1997: 167, fig. 117 A – E) in having a similar long and curved embolus, but it differs from the latter by the long, digitiform ventral tibial apophysis (vs short and conical in T. labefactus), the groove-shaped retrolateral tibial apophysis (vs base stretches in T. labefactus), and the arc-shaped copulatory ducts (vs semicircular in T. labefactus) (Fig. 10).
Description.
Male holotype (SWUC -T-THO-06-01, Fig. 3 K) total length 3.84. Prosoma 1.90 long, 1.98 wide; opisthosoma 2.24 long, 2.31 wide. Carapace brown, with a great many small denticles. Eye sizes and interdistances: AME 0.12, ALE 0.14, PME 0.11, PLE 0.10; AME – AME 0.27, AME – ALE 0.32, PME – PME 0.57, PME – PLE 0.42, ALE – PLE 0.24. MOA 0.39 long, anterior width 0.51, posterior width 0.75. Clypeus height 0.30. Chelicerae brown, with 3 promarginal and 2 retromarginal teeth. Leg measurements: I 5.35 (1.75, 1.87, 0.97, 0.76); II 5.48 (1.82, 1.93, 0.95, 0.78); III 2.94 (0.95, 1.06, 0.49, 0.44); IV 3.11 (1.04, 1.02, 0.58, 0.47). Leg formula: 2143. Opisthosoma brown, dorsum with small spines, venter yellow.
Palp (Fig. 10 A, B). Tibia as long as wide. Ventral tibial apophysis blunt, digitiform. Retrolateral tibial apophysis large, wide, groove-shaped. Embolus originating at approximately 11 - o’clock position, curved along with bulb.
Female paratype (SWUC -T-THO-06-03, Fig. 3 L) total length 10.73. Prosoma 5.42 long, 5.19 wide; opisthosoma 5.84 long, 8.29 wide. Carapace yellowish. Eye sizes and interdistances: AME 0.20, ALE 0.23, PME 0.16, PLE 0.18; AME – AME 0.56, AME – ALE 0.71, PME – PME 1.09, PME – PLE 0.73, ALE – PLE 0.37. MOA 0.79 long, anterior width 0.95, posterior width 1.43. Clypeus height 0.65. Leg measurements: I 15.60 (4.99, 5.75, 2.81, 2.05); II 14.69 (4.74, 5.51, 2.69, 1.75); III 8.68 (2.92, 3.14, 1.62, 1.00); IV 10.14 (3.30, 3.72, 1.93, 1.19). Leg formula: 2143. Opisthosoma white, with a brown spot.
Epigyne (Fig. 10 C, D). Epigynal plate oval. Copulatory openings arc-like, distant from each other. Copulatory ducts arc-like, three times longer than wide. Spermathecae transparent, spherical. Fertilization ducts crescent-shaped.
Variation.
Males (n = 2) total length 3.29–3.84.
Distribution.
Known only from the type locality, Medog, Xizang, China (Fig. 11).
description: Published as part of Wang, Lu-Yu, Mu, Yan-Nan, Lu, Qian-Le, Xu, Yong-Qiang, Bu, Hai-Tao, Zhang, Feng & Zhang, Zhi-Sheng, 2024, Description of six new crab-spider species and first description of the male of Pharta xizang Liu & Yao, 2023 from Medog, Xizang, China (Araneae, Thomisidae), pp. 195-213 in ZooKeys 1217 on pages 195-213, DOI: 10.3897/zookeys.1217.127555