Chilobrachys dominus 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/36EC608E-6671-407E-9E1D-10C5497BADC0
taxon LSID	lsid:zoobank.org:act:36EC608E-6671-407E-9E1D-10C5497BADC0
treatment provided by	ZooKeys by Pensoft
scientific name	Chilobrachys dominus Lin & Li
status	sp. nov.

Treatment

Chilobrachys dominus Lin & Li sp. nov.

Figs 1A View Figure 1 , 2A-H View Figure 2 , 3A, B View Figure 3 , 4A-C View Figure 4 , 8 View Figure 8

Type material.

Holotype ♂ (IZCAS-Ar42676), China: Yunnan: Jinghong, Mount Jinuo, Jinuo Road, 22.0556°N, 100.9853°E, elevation 1040 m, 16.XI.2021, Yi Ming leg.

Diagnosis.

The male of Chilobrachys dominus sp. nov. is similar to that of C. pococki (Thorell, 1897) in having a long, strongly curved embolus, but can be distinguished by the embolus bent in at two thirds (vs. halfway in C. pococki ).

Description.

Male (holotype, IZCAS-Ar42676) (Figs 2B-H View Figure 2 , 3 View Figure 3 , 4 View Figure 4 ). Carapace 13.27 long, 11.89 wide, black, with long purple setae. Opisthosoma black, with long black setae. Eye group 2.08 long, 1.04 wide (Fig. 2F View Figure 2 ). MOA 0.81 long, anterior width 1.05, posterior width 1.53. Eye sizes and interdistances: ALE 0.52, AME 0.44, PLE 0.37, PME 0.37; ALE-AME 0.17, AME-AME 0.24, PLE-PME 0.02, PME-PME 0.90. Fovea slightly procurved. Chelicerae black, with row of 14 promarginal teeth. Labium wider than long, with 368 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 4, II 6, III 5, IV 4. Leg measurements: I 43.77 (12.70 + 5.62 + 11.52 + 7.39 + 6.54), II 38.16 (10.54 + 4.88 + 9.92 + 7.63 + 5.19), III 35.95 (9.59 + 4.08 + 7.87 + 8.61 + 5.80), IV 48.11 (12.72 + 4.89 + 11.10 + 12.75 + 6.65). Leg formula: 4123.

Male palpal bulb (Fig. 3A, B View Figure 3 ; male palp with bulb Fig. 4A-C View Figure 4 ). Maxillae with lyra setae ventrally. Bulb oval, embolus slender and long, strongly curved at 90°, with A.

Female. unknown.

Etymology.

The species is named after the Latin word dominus, as this is one of the rarest spiders from China; noun (name) in apposition.

Distribution.

Known only from the type locality.