Sinopoda xishui Zhang, Yu & Zhong, 2023
|
publication ID |
https://dx.doi.org/10.3897/zookeys.1159.101535 |
|
publication LSID |
lsid:zoobank.org:pub:85B4CC9F-6985-4193-8B17-0257600CF650 |
|
persistent identifier |
https://treatment.plazi.org/id/75A10745-DBF5-4845-905C-D2CB6DE32005 |
|
taxon LSID |
lsid:zoobank.org:act:75A10745-DBF5-4845-905C-D2CB6DE32005 |
|
treatment provided by |
|
|
scientific name |
Sinopoda xishui Zhang, Yu & Zhong |
| status |
sp. nov. |
Sinopoda xishui Zhang, Yu & Zhong sp. nov.
Figs 7 View Figure 7 , 8 View Figure 8 , 9 View Figure 9
Type material.
Holotype ♀ (YHSPA007), China: Guizhou Province: Zunyi City: Xishui County, Xishui National Nature Reserve, Sanchahe Town, Hongyangou Village, 28.50°N, 106.40°E, c. 934 m, by hand, 23.V.2022, H. Yu et al. leg. Paratype: 1♀, same data as holotype.
Etymology.
The species name is derived from the name of the type locality; noun in apposition.
Diagnosis.
Females of this new species resembles those of S. yaanensis Zhong, Jäger, Chen & Liu, 2019 in having similar vulva with swollen, globular glandular appendages, and oval shaped posterior part of spermathecae, but can be distinguished by: (1) lobal septum distinctly wider, its anterior part about 1/5 width of epigynal plate (Fig. 7A, B View Figure 7 ) (vs. relatively narrower, its anterior part about 1/8-1/9 width of epigynal plate; Zhang et al. 2015: figs 40, 46; Zhong et al. 2019: fig. 57E); and (2) the anterior part of internal ducts far from the anterior margin of epigynal plate (Fig. 7C View Figure 7 ) (vs. reach the anterior margin of epigynal plate; Zhang et al. 2015: fig. 41; Zhong et al. 2019: fig. 57J).
Description.
Female (YHSPA007). Total length 16.4. Prosoma 7.7 long, 6.8 wide, anterior width of prosoma 4.2. Opisthosoma 8.7 long, 6.1 wide. Eye sizes and interdistances: AME 0.35, ALE 0.44, PME 0.38, PLE 0.48, AME-AME 0.28, AME-ALE 0.14, PME-PME 0.44, PME-PLE 0.53, AME-PME 0.52, ALE-PLE 1.44, CHAME 0.32, CHALE 0.37. Spination: Palp: 131, 101, 2121, 1014; Fe: I-III 323, IV 321; Pa: I-IV 101; Ti: I-III 2026, IV 2126; Mt: I-II 1014, III 2026, IV 3036. Measurements of palp and legs: Palp 9.8 (3.0, 1.6, 2.1, 3.1), I 26.8 (7.8, 2.4, 7.8, 6.5, 2.3), II 29.1 (8.9, 2.8, 8.2, 7.1, 2.1), III 24.2 (7.6, 3.1, 6.3, 5.1, 2.1), IV 24.7 (6.7, 2.4, 7.3, 6.1, 2.2). Leg formula: II-I-IV-III. Cheliceral furrow with two anterior and four posterior teeth, and with ~ 38 denticles.
Colour of the living holotype female was uniformly dark except brown femur (Fig. 8A View Figure 8 ). Colouration in ethanol (Fig. 7D, E View Figure 7 ): Prosoma dark yellowish to brown, with bright yellow submarginal transversal band at posterior part. Median band of prosoma bright yellowish, anteriorly as wide as PER, gradually narrowing posteriorly; lateral bands brown, distinctly delimited to median band, starting from PLE, reaching dark reddish submarginal transversal band. Fovea and radial furrows distinctly marked. Chelicerae yellowish-brown. Sternum bright yellow, margin slightly darker. Endites and labium yellowish. Legs yellowish-brown, covered by short spines. Dorsal opisthosoma dark brown, anteriorly with a small ‘)(‘ -shaped yellow pattern, with three pairs of inconspicuous dots on each side; ventral opisthosoma dark, with several transversal folds.
Copulatory organ (Fig. 7A-C View Figure 7 ). Epigynal field wider than long, anterior bands nearly invisible indistinct, slit sensillum absent. Lobal septum wide, anterior part about 1/5 width of epigynal plate, gradually wider to the posterior. Lateral lobes fused, posterior margin slightly bilobed, medially with small incision. Internal ducts running parallel along the middle line. Glandular appendages distinctly inflated, globular; the two GA widely separated by about 3 × diameters. Posterior part of spermathecae more or less bean-shaped, c. 1.9 times longer than wide; the two PP separated by about 2.3 width. Fertilization ducts acicular, membranous, located on posterior surface of spermathecae. Membranous sac between fertilization ducts, nearly trapezoidal.
Male. Unknown.
Distribution.
Known only from the type locality, Xishui National Nature Reserve, Guizhou, China (Fig. 9 View Figure 9 ).
Comments.
The females of S. xishui sp. nov. exhibit typical Sinopoda globosa -group features (internal ducts running parallel along median line, and with ovate posterior parts of spermathecae, as diagnosed in Zhang et al. (2021)), and resembles S. yaanensis (the core species of the Sinopoda globosa -group) (for a detailed diagnosis, see above). However, this species is not readily assignable to the Sinopoda globosa -group due to the lack of an available male specimen.
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.