Chilobrachys jinchengi Lin & Li, 2022

Lin, Yejie, Yan, Xunyou & Li, Shuqiang, 2022, Two new species of the genus Chilobrachys (Araneae, Theraphosidae) from China, ZooKeys 1081, pp. 99-109 : 99

publication ID	https://dx.doi.org/10.3897/zookeys.1081.77072
publication LSID	lsid:zoobank.org:pub:729EAE0B-66E6-4AA4-BDAE-19566B5C176F
persistent identifier	https://treatment.plazi.org/id/CA76A9EC-61AF-4EBA-92F5-521EF797E229
taxon LSID	lsid:zoobank.org:act:CA76A9EC-61AF-4EBA-92F5-521EF797E229
treatment provided by	ZooKeys by Pensoft
scientific name	Chilobrachys jinchengi Lin & Li
status	sp. nov.

Treatment

Chilobrachys jinchengi Lin & Li sp. nov.

Figs 1B View Figure 1 , 5A-H View Figure 5 , 6A, B View Figure 6 , 7A-C View Figure 7 , 8 View Figure 8

Type material.

Holotype ♂ (IZCAS-Ar42677), China: Tibet: Nyingchi, Medog, from Baibung to Muge, 29.2386°N, 95.1831°E, elevation 1310 m, 21.VIII.2018, Jincheng Liu leg. Paratype 1♂ (IZCAS-Ar42678), same data as holotype.

Diagnosis.

The male of Chilobrachys jinchengi sp. nov. is similar to that C. bicolor ( Pocock 1895), but can be distinguished by the length ratio of the embolus to the bulb, which is almost 2:1 in C. jinchengi sp. nov. and is 1:1 in C. bicolor .

Description.

Male (holotype, IZCAS-Ar42677) (Figs 5B-H View Figure 5 , 6 View Figure 6 , 7 View Figure 7 ). Carapace 13.12 long, 10.21 wide, brown with long setae. Opisthosoma absent. Eye group 2.32 long, 0.97 wide (Fig. 5F View Figure 5 ). MOA 0.77 long, anterior width 0.89, posterior width 1.38. Eye sizes and interdistances: ALE 0.51, AME 0.45, PLE 0.42, PME 0.38; ALE-AME 0.34, AME-AME 0.25, PLE-PME 0.12, PME-PME 0.87. Fovea slightly procurved. Chelicerae dark brown, with row of 12 promarginal teeth. Labium wider than long, with 367 cuspules. Sternum yellow-brown, with 3 pairs of sigilla. Legs with long and short setae. Tarsi I-III with 2 claws, tarsus IV with 3 claws, denticle number: I 9, II 9, III 9, IV 12. Leg measurements: I 49.58 (14.23 + 7.12 + 11.21 + 9.89 + 7.13), II 45.77 (13.02 + 6.73 + 9.52 + 9.59 + 6.91), III 43.21 (11.51 + 5.48 + 8.24 + 11.51 + 6.47), IV 53.97 (14.32 + 5.87 + 11.22 + 15.96 + 6.60). Leg formula: 4123.

Male palpal bulb (Fig. 6A, B View Figure 6 ; male palp with bulb Fig. 7A-C View Figure 7 ). Maxillae with lyra setae ventrally. Bulb oval, embolus bow-shaped, strongly curved at 180°, with A, PI and PS. Distal edge of embolus relatively flat.

Female. unknown.

Etymology.

The species is named after Mr. Jincheng Liu, who collected the type material; noun (name) in the genitive case.

Distribution.

Known only from the type locality.