Camaricus medog 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
Camaricus
Camaricus medog

description: Camaricus medog Wang, Lu & Zhang sp. nov.
Figs 1 A, B, 3 A, B, 4, 11
Type material.
Holotype • ♂ (SWUC -T-THO-01-01), China, Xizang, Medog County, Mirage observation deck, 29°20'36"N, 95°20'43"E, elev. 1297 m, 8 July 2023, Z. S. Zhang, L. Y. Wang, Q. L. Lu and X. L. Chen leg. Paratypes: • 1 ♂ 4 ♀ (SWUC -T-THO-01-02 ~ 06), 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 C. formosus Thorell, 1887 (Song and Zhu 1997: 173, fig. 122 A – D) in having the embolus origin in the same position, but C. medog differs from the latter by the short and blunt ventral tibial apophysis end (vs long and sharp in C. formosus), a bifurcated retrolateral tibial apophysis (vs single in C. formosus), a broad embolus (vs slender in C. formosus), and a distinct copulatory atrium (vs indistinct in C. formosus) (Fig. 4).
Description.
Male holotype (SWUC -T-THO-01-01, Figs 1 A, 3 A) total length 4.50. Prosoma 2.40 long, 2.09 wide; opisthosoma 2.03 long, 1.69 wide. Carapace black. Eye sizes and interdistances: AME 0.12, ALE 0.16, PME 0.05, PLE 0.12; AME – AME 0.39, AME – ALE 0.34, PME – PME 0.68, PME – PLE 0.51, ALE – PLE 0.31. MOA 0.33 long, anterior width 0.66, posterior width 0.82. Clypeus height 0.21. Chelicerae black, with 3 promarginal and 3 retromarginal teeth. Labium and endites brown, longer than wide. Sternum brown and scutellate. Leg measurements: I 7.65 (2.22, 2.85, 1.55, 1.03); II 7.58 (2.21, 2.83, 1.48, 1.06); III 4.39 (1.45, 1.60, 0.69, 0.65); IV 4.37 (1.44, 1.62, 0.74, 0.57). Leg formula: 1234. Opisthosoma oval, black, with a white spot at mid-anterior part. Spinnerets black.
Palp (Fig. 4 A, B). Tibial as 1 / 2 of length cymbium, ventral tibial apophysis somewhat pediform, retrolateral tibial apophysis bifurcated: ventral arm thumb shaped, retrolateral arm hook-like in retrolateral view. Embolus originating at approximately 9 - o’clock position, broad, curved along with bulb.
Female paratype (SWUC -T-THO-01-02, Fig. 3 B) total length 6.60. Prosoma 3.04 long, 2.63 wide; opisthosoma 3.70 long, 3.22 wide. Eye sizes and interdistances: AME 0.11, ALE 0.21, PME 0.10, PLE, 0.19; AME – AME 0.49, AME – ALE 0.46, PME – PME 0.84, PME – PLE 0.60, ALE – PLE 0.32. MOA 0.45 long, anterior width 0.80, posterior width 1.04. Clypeus height 0.27. Leg measurements: I 7.07 (2.10, 2.55, 1.40, 1.02); II 7.16 (2.13, 2.70, 1.37, 0.96); III 4.72 (1.59, 1.77, 0.75, 0.61); IV 5.38 (1.74, 2.13, 0.87, 0.64). Leg formula: 2143. Opisthosoma oval, black, with 5 white (yellow when live) and one brown spots. Spinnerets black.
Epigyne (Fig. 4 C, D). Epigynal plate longer than wide. Copulatory opening located anteriorly. Copulatory ducts transparent and C-like. Spermathecae stomach shaped. Fertilization ducts crescent-shaped.
Variation.
Males (n = 2) total length 4.50–4.92; females (n = 4) total length 6.60–8.00.
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