Orientattus chushu K. Liu, 2025

Liu, Bin-lu, Yao, Yan-bin, Cai, Zi-han, Wang, Zhong-jing & Liu, Ke-ke, 2025, Diversity of jumping spiders (Araneae, Salticidae) in the Jinggangshan National Nature Reserve, Jiangxi, China, ZooKeys 1239, pp. 183-212 : 183-212

publication ID	https://doi.org/10.3897/zookeys.1239.140810
publication LSID	lsid:zoobank.org:pub:26D871B9-2C89-4762-ADF4-2E0294936385
DOI	https://doi.org/10.5281/zenodo.15498008
persistent identifier	https://treatment.plazi.org/id/AA951A93-FC3E-5ACA-A07A-E7B1AFABACC8
treatment provided by	ZooKeys by Pensoft
scientific name	Orientattus chushu K. Liu
status	sp. nov.

Treatment

Orientattus chushu K. Liu sp. nov.

Figs 6 View Figure 6 , 7 View Figure 7 , 12 B, C Common name: 楚舒东蛛 View Figure 12

Type material.

Holotype ♂, China • Jiangxi Province: Ji’an County, Jinggangshan County Level City, Ciping Town, Zhufeng Scenic Spot , 26°32'16.8"N, 114°8'38.4"E, 846 m a. s. l., 1 August 2014, Feng-bo Zhang, Yong-hong Xiao, Chu-shu Xie, Huo-kai Wang, Jiao-rong Liu, Ze-yuan Meng and Ke-ke Liu leg. (Sal- 049, ASM-JGSU) GoogleMaps . Paratypes: • 1 ♀, Xiaojing Village, Longtan Scenic Spot , 26°35'24"N, 114°8'9.6"E, 930 m a. s. l., 2 August 2014, other data as same as holotype (Sal- 049, ASM-JGSU) GoogleMaps .

Diagnosis.

Male is similar to that of Orientattus aurantius (Kanesharatnam & Benjamin, 2018) (cf. Figs 6 C-F View Figure 6 , 12 B, C View Figure 12 and Caleb J. T. D. 2020: 2, figs 1–5) in having the rounded tegulum, same posterior lobe in ventral view and bifurcated retrolateral tibial apophysis, but can be easily distinguished from it by the longer curved embolus with a thin tip (vs the short embolus with a thick tip) and three forked RTA (vs two). The females of this species resemble O. bowu Lin, Wang & Ruan, 2024 (cf. Fig. 7 C, D View Figure 7 and Lin et al. 2024: 28, fig. 4 A, B) in having a relatively small copulatory opening and a pair of pockets on the posterior margin of the epigynal plate, but can be separated by the closely spaced pockets (vs widely) and the oval-shaped spermathecae (vs reniform).

Description.

Male (holotype). Habitus (Fig. 6 A, B View Figure 6 ). Total length 5.04. Carapace (Fig. 6 A View Figure 6 ), anterior eyes area and posterior margin black, subposterior part red, length 2.36, width 1.88, with dense, short, white setae. Eyes (Fig. 6 A View Figure 6 ) diameters and interdistances: AME 0.51, ALE 0.25, PME 0.18, PLE 0.28; AME – AME 0.13, ALE - AME 0.12, PME – PME 1.5, PLE - PME 0.16, AME - PME 0.76, AME - PLE 1.05, ALE - ALE 1.27, PLE - PLE 1.36, ALE - PLE 0.81. MOA 1.17 long, front width 1.15, back width 1.67. Chelicerae (Fig. 6 B View Figure 6 ) black, straight, robust, with two retromarginal and one promarginal teeth. Endites brown, nearly as long as wide. Labium brown, wider than long. Sternum yellow to brown, longer than wide, with densely long setae. Legs yellow to black brown (Fig. 6 A, B View Figure 6 ), with brown annulations; measurements: I 4.37 (1.23, 0.77, 1.14, 0.65, 0.58); II 4.16 (1.32, 0.69, 0.97, 0.59, 0.59); III 4.34 (1.34, 0.8, 0.85, 0.68, 0.67); IV 4.88 (1.5, 0.62, 1.06, 0.98, 0.72); spination: I Fe: d 1-0 - 0; Pa pr 1-1 - 1; Ti pv 1-1 - 1, rv 1-1 - 1; Met pv 1-0 - 1, rv 1-0 - 1, v 1-0 - 1; II Fe pr 1-1 - 1; Pa pr 1-1 - 2; Ti pv 0-1 - 0, pr 0-1 - 0; III Fe d 1-1 - 1, pr 0-0 - 1, rt 0-0 - 1; Pa pr 0-1 - 0; Ti pv 0-1 - 1, rv 0-0 - 1, pr 0-1 - 1; Met pr 1-0 - 0, rt 1-0 - 1; IV Fe pr 1-1 - 1, rt 0-0 - 1; Pa pr 0-0 - 1; Ti pv 1-0 - 1, v 0-0 - 1, pr 1-0 - 0, rt 1-0 - 0; Met pr 1-1 - 0, rt 1-1 - 1. Abdomen (Fig. 6 A, B View Figure 6 ) elongate, oval, yellow to black-brown, with five yellow stripes, 2.61 long, 1.89 wide; venter yellow to brown, with U-shaped and straight serrated stripes.

Palp (Figs 6 C-F View Figure 6 , 12 B, C View Figure 12 ). Retrolateral tibial apophysis thumb-like in ventral view, apex directed ventrally, with three dentate processes in retrolateral view. Posterior lobe of tegulum elongated, nearly extending to the medial part of tibia. Sperm duct curved, arising from 12 o’clock. Embolus hook-shaped, arising from 10 o’clock, with a spine-like tip, directed retrolaterally.

Female (paratype). As in male, except as noted. Habitus (Fig. 7 A, B View Figure 7 ). Total length 7.23. Carapace (Fig. 7 A View Figure 7 ) length 3.02, width 2.69. Eyes (Fig. 7 A View Figure 7 ) diameters and interdistances: AME 0.58, ALE 0.37, PME 0.12, PLE 0.33; AME – AME 0.29, ALE - AME 0.27, PME – PME 1.87, PLE - PME 0.29, AME - PME 0.71, AME - PLE 1.04, ALE - ALE 1.72, PLE - PLE 1.98, ALE - PLE 0.72. MOA 1.04 long, front width 1.35, back width 2.12. Chelicerae (Fig. 7 B View Figure 7 ) black, straight, robust, with two retromarginal and one promarginal teeth. Legs measurements: I-II missing; III 6.46 (2.02, 0.78, 1.52, 1.21, 0.93); IV 5.78 (2.05, 0.64, 1.32, 0.93, 0.84); spination (Fig. 7 A, B View Figure 7 ): III Fe d 1-0 - 1, pr 0-0 - 1, rt 0-0 - 1; Pa rv 0-1 - 0; Ti pr 1-0 - 1, rt 1-0 - 1; Met pv 1-0 - 1, rv 1-0 - 1, pr 1-0 - 1, rt 1-0 - 1; IV d 1-0 - 1, pr 0-0 - 1, rt 0-0 - 1; Ti pv 1-0 - 1, rv 1-0 - 1, pr 1-0 - 1, rt 1-0 - 1; Met missing. Abdomen (Fig. 7 A, B View Figure 7 ) with seven yellow stripes from anterior to front of anus, 4.38 long, 3.27 wide.

Epigyne (Fig. 7 C, D View Figure 7 ). Copulatory openings located at antero-lateral part of epigyne, longitudinal, directed anteriorly. Copulatory ducts very short, curved. Spermathecae oval, anterior part closer than posterior. Fertilization ducts anteriorly located, directed laterally.

Distribution.

Known only from the Jiangxi Province locality (Fig. 13 View Figure 13 ).

Etymology.

The specific name is a patronym for Miss Chushu Xie, who collected the specimens from Jingggang Mountain; noun in apposition.

Remark.

Due to the bifurcated RTA and the well-developed PL of this new species that closely resemble those of the type species O. aurantius , we place it in the genus Orientattus .