Yunguirius xiangding B. Li, Zhao & S. Li, 2023
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publication ID |
https://dx.doi.org/10.3897/zookeys.1159.100786 |
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publication LSID |
lsid:zoobank.org:pub:C2BD6C63-A9D2-4C3E-8189-3F9E3001AC64 |
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persistent identifier |
https://treatment.plazi.org/id/6AD39BEA-5092-45C4-8159-A62F88866643 |
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taxon LSID |
lsid:zoobank.org:act:6AD39BEA-5092-45C4-8159-A62F88866643 |
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treatment provided by |
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scientific name |
Yunguirius xiangding B. Li, Zhao & S. Li |
| status |
sp. nov. |
Yunguirius xiangding B. Li, Zhao & S. Li sp. nov.
Figs 4 View Figure 4 , 5 View Figure 5
Type material.
Holotype ♀ (IZCAS-Ar44408): China: Sichuan Province: Luzhou City: Gulin County, Shiping Township, Xiangding Village, Huaer Cave, 28.0294°N, 106.0073°E, elevation: 641 m, 22.IV.2014, Y. Lin, H. Zhao, Y. Li, J. Wu and F. Li leg.
Etymology.
The new species is named after the type locality (Xiangding Village); noun in apposition.
Diagnosis.
Yunguirius xiangding sp. nov. resembles Y. subterebratus by having a cordiform atrium, asymmetric copulatory ducts, arch-shaped spermathecal stalks, fists on both sides, and the unilateral end of spermathecal head exposed. However, it can be distinguished from Y. subterebratus as follows: 1) crevice breaking at lateral margin of the atrium, below its hoods (Fig. 4A View Figure 4 ) in Y. xiangding sp. nov., but at anterior margin of the atrium, above its hoods (fig. 245A in Zhu et al. 2017) in Y. subterebratus ; 2) the mid part of anterior margin of the atrium raised (Fig. 4A View Figure 4 ) in Y. xiangding sp. nov., but concave (fig. 245A in Zhu et al. 2017) in Y. subterebratus ; 3) posterior epigynal sclerite vase-shaped (Fig. 4A View Figure 4 ) in Y. xiangding sp. nov., but waist-drum-shaped (fig. 245A in Zhu et al. 2017) in Y. subterebratus ; and 4) spermathecal stalks extending laterally (Fig. 4B View Figure 4 ) in Y. xiangding sp. nov., but extending anteriorly (fig. 245B in Zhu et al. 2017) in Y. subterebratus .
Description.
Female (holotype) (Fig. 4 View Figure 4 ). Body length 13.29. Carapace 6.21 long, 4.22 wide. Abdomen 7.08 long, 5.02 wide. Eye sizes and interdistances: AME: 0.14, ALE: 0.17, PME: 0.15, PLE: 0.16; AME-AME: 0.08; AME-ALE: 0.12; AME-PME: 0.06; ALE-PLE: 0.05; PME-PME: 0.07; PME-PLE: 0.22. All legs were used for prophase work of DNA extractions. Carapace dark brown, anterior black; fovea and radial grooves dark; chelicerae black, with three promarginal and two retromarginal teeth; endites and labium dark brown to black, anterior white with several hairs; sternum brownish, lateral brown, c. 1.2 times longer than wide. Abdomen yellowish-brown, nearly oval, posterior widest, with four dark chevrons and dark brown speckles. Epigyne (Fig. 4A, B View Figure 4 ): posterior epigynal sclerite vase-shaped, atrium cordiform, anterior widest, with sclerotic lateral margin, inside with inverted triangle osteon, outside with brownish markings, fold brown, ridge-shaped, close to the deep hood; copulatory opening small, located anteriorly, near the midline, and symmetric; copulatory duct beloid, and then swollen; first half of spermatheca dumbbell-shaped, long spermathecal head wrapped in copulatory duct, with unilateral end exposed; fertilization duct c. 3.5 times longer than wide, pointed laterally.
Male. Unknown.
Distribution.
Sichuan Province, China (Fig. 5 View Figure 5 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.