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. 2025 Nov 28;1261:189–200. doi: 10.3897/zookeys.1261.171511

Shuqiangius gen. nov., a new genus of Oxyopidae (Arachnida, Araneae) from China

Ying Wang 1, Qingzhen Meng 1, Yuri M Marusik 2,3,4,✉, Zhiyuan Yao 1,✉
PMCID: PMC12680946  PMID: 41357959

Abstract

A new genus Shuqiangius Wang, Marusik & Yao, gen. nov. is described. It comprises the type species Shuqiangius rarobulbus (Lo, Cheng & Lin, 2024), comb. nov. (♂; Taiwan, China) and a new species Shuqiangius chuan Wang, Marusik & Yao, sp. nov. (♂♀; Sichuan, China).

Key words: Aranei , Asia, lynx spider, new combination, new species

Introduction

Oxyopidae is a relatively small family with 448 extant species belonging to nine genera (WSC 2025). The most speciose genus of this family is Oxyopes Latreille, 1804, including 284 valid species (WSC 2025). There has not been any global revision of the family, nor has it been split into subfamilies. The family is poorly studied in China and adjacent regions. All that is known is that the numbers of species recorded in China comprise 34 species of Oxyopes (Schenkel 1936; Hu and Wu 1989; Song et al. 1999; Zhang and Zhu 2005; Zhang et al. 2005a, 2005b; Esyunin et al. 2011; Tang and Li 2012; Yin et al. 2012), two species of Hamadruas Deeleman-Reinhold, 2009 (Hu et al. 1983; Hu and Zhang 1984; Song 1991; Tang and Li 2012), 18 species of Hamataliwa Keyserling, 1887 (Zhang et al. 2005c; Tang and Li 2012; Tang et al. 2012; Lin et al. 2022; Lo et al. 2024a, 2024b), three species of Peucetia Thorell, 1869 (Kayashima 1939; Hu et al. 1987), and four species of Tapponia Simon, 1885 (Lo et al. 2024a, 2024b).

While studying spiders from Sichuan, China, we found a species that is somatically similar to Oxyopes but having a combination of genitalic characters not seen in Oxyopes and other members of Oxyopidae, except for one from Taiwan, which has hitherto been described under the genus Tapponia. Both species (from Taiwan and Sichuan) are clearly related and should be placed in a new genus. The goal of this paper is to characterize the new genus and provide a description of the new species from Sichuan.

Material and methods

Spider specimens were examined and measured with a Leica M205 C stereomicroscope. Left male palp was photographed. Epigynes were photographed before dissection. Epigynes were previously treated in a 10% warm solution of potassium hydroxide (KOH) to dissolve soft tissues before illustration of the endogyne. The majority of the setae on the male palp’s cymbium were removed to facilitate the observation of fine structures, resulting in their absence in the illustrations. Images were captured with a Canon EOS 750D wide zoom digital camera (24.2 megapixels) mounted on the stereomicroscope mentioned above, and assembled using Helicon Focus v. 3.10.3 image stacking software (Khmelik et al. 2005). All measurements are given in millimeters (mm). The measurements of the palp and legs are given as the total length (palp: femur, patella, tibia, and tarsus lengths; leg: femur, patella, tibia, metatarsus, and tarsus lengths). Leg segments were measured on their dorsal side. The distribution map was generated with ArcGIS v. 10.2 (ESRI Inc.). The specimens studied are preserved in 75% ethanol and deposited in the Shenyang Normal University in Liaoning, China.

The abbreviations followed Tang and Li (2012) with some modifications: AER = anterior eye row; ALE = anterior lateral eye; ALE–PLE = distance between ALE and PLE; AME = anterior median eye; AME–ALE = distance between AME and ALE; AME–AME = distance between AMEs; d = dorsal; Fe = femur; Mt = metatarsus; p = prolateral; Pa = patella; PER = posterior eye row; PLE = posterior lateral eye; PME = posterior median eye; PME–PLE = distance between PME and PLE; PME-PME = distance between PMEs; r = retrolateral; Ta = tarsus; Ti = tibia; TL = tegular lobe; v = ventral.

Taxonomy

Family Oxyopidae Thorell, 1869

Genus. Shuqiangius

Wang, Marusik & Yao gen. nov.

D75DC6E4-275C-5C6E-A683-F9CC76914E7B

https://zoobank.org/FA59DAA5-7FBA-45A4-AAF1-1FC1A2B9A165

Type species.

Shuqiangius rarobulbus (Lo, Cheng & Lin, 2024), comb. nov.

Etymology.

The generic name is dedicated to Prof. Shuqiang Li (Anhui, China) who has contributed much to our understanding of spider taxonomy. A masculine noun in nominative case.

Diagnosis.

The new genus resembles Hamadruas Deeleman-Reinhold, 2009 (Deeleman-Reinhold 2009) by having similar embolus (E) forming 360° loop and terminating almost in center of bulb, and round spermatheca (S), but can be distinguished by the tip of cymbium longer than wide (vs wider than long) and by the presence of distinct posterior pocket (PP; vs absent). Males of this new genus can be distinguished from those of all other genera except for Peucetia Thorell, 1869 by the tip of cymbium longer than wide (vs wider than long or as long as wide). Males of this new genus can be distinguished from those of Peucetia by the absence of paracymbium (vs present). Females can be distinguished from those of other genera (including Peucetia) by having a long epigynal atrium ca 1.5× longer than wide (vs absent or wider than long), distinct posterior pocket (vs lacking), atrium with a thin, septum-like stripe of setae centrally and more numerous posteriorly (vs setae lacking or not documented) (Blackwall 1858; Simon 1866, 1885, 1898a, 1898b; Keyserling 1887; Thorell 1895; Rainbow 1915; Brady 1964; Deeleman-Reinhold 2004, 2009).

Description.

Male: Total length 3.70–4.35. Carapace egg-shaped, length/width ratio 1.16 or 1.29, brownish or yellowish brown, covered with white setae. Radial furrows indistinct and fovea longitudinal. In dorsal view, eyes with AER strongly recurved and PER strongly procurved (Fig. 2A). Chelicerae brown or yellowish brown, with one promarginal and one retromarginal teeth. Endites yellowish or dark brown. Sternum brown or dark brown, length/width ratio ca 1.28. Legs yellowish, clothed with several long spines on femur, patella, tibia, and metatarsus (Fig. 2A, B). Leg formula: I > II > III > IV. Abdomen oval, covered dense, white setae (Fig. 2A, B). Cardiac mark indistinct (Fig. 2A, B).

Figure 2.

Figure 2.

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Shuqiangius chuan sp. nov., holotype male , habitus. A. Dorsal view; B. Ventral view. Scale bar: 1 mm (A, B).

Palp as in Figs 3A–D, 4A–C; femur length/width ratio 3.43; patella length/width 0.28/0.21; tibia wider than long, with three apophyses. Retrolateral tibial apophysis (RTA) large and twisted; ventral tibial apophysis (VTA) digitiform or pointed. Tip of cymbium as long as wide or longer than wide. Tegular lobe (TL) small/lacking. Conductor (C) long and wide, with membranous base, tip bend and point toward proximal. Embolus (E) very long forming 360° loop and terminating almost in center of bulb, base of embolus (E) large located in retrolateral half of bulb.

Figure 3.

Figure 3.

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Shuqiangius chuan sp. nov., holotype male, palp. A. Prolateral view; B. Retrolateral view; C. Ventral view; D. Dorsal view. C = conductor, E = embolus, RTA = retrolateral tibial apophysis, VTA = ventral tibial apophysis. Scale bars: 0.2 mm (A–D).

Figure 4.

Figure 4.

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Shuqiangius chuan sp. nov., paratype male, bulb. A. Prolateral view; B. Ventral view; C. Retrolateral view. C = conductor, E = embolus. Scale bars: 0.2 mm (A–C).

Female: Total length 4.90–5.77. Carapace egg-shaped, length/width ratio 1.19–1.24, brown, covered with white setae, except for medially. Sternum length/width ratio 1.19–1.21. Abdomen from light to almost uniformly brown; venter with broad, dark, median band from epigastric furrow to spinnerets, and light yellowish bands along median band (Fig. 5A–F).

Figure 5.

Figure 5.

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Shuqiangius chuan sp. nov., paratype females, habitus. A–C. Dorsal view; D–F. Ventral view. Scale bars: 1 mm (A–F).

Epigynes and Endogynes as in Fig. 6A–F; epigynal plate about as wide as long, with large entirely rebordered atrium, 1.5 times longer than wide, widest in anterior 1/5; posteriorly with distinct pocket (PP); medially atrium with kind of septum (not rebordered, just raised median part). Copulatory openings (CO) anteriorly situated. Copulatory ducts (CD) curved. Fertilization ducts (FD) slender with hook-like terminal.

Figure 6.

Figure 6.

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Shuqiangius chuan sp. nov., paratype females. A–C. Epigynes, ventral view; D–F. Endogynes, dorsal view. CD = copulatory duct, CO = copulatory opening, FD = fertilization duct, PP = posterior pocket. Scale bars: 0.1 mm (A–F).

Distribution.

China (Sichuan; Taiwan, type locality; Fig. 1).

Figure 1.

Figure 1.

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Distribution records of the genus Shuqiangius gen. nov. 1–3: Shuqiangius chuan sp. nov. 4: Shuqiangius rarobulbus comb. nov.

Composition.

S. rarobulbus (Lo, Cheng & Lin, 2024), comb. nov. and S. chuan Wang, Marusik & Yao, sp. nov.

. Shuqiangius rarobulbus

(Lo, Cheng & Lin, 2024) comb. nov.

12CD9109-3739-5A6B-B4B1-3330077EBB78

  • Tapponia rarobulbus Lo et al. 2024a: 37, figs 25A–D, 26A–C (♂, nomen nudum).

  • Tapponia rarobulbus Lo et al. 2024b: 2 (♂, validation of species description).

Type material.

Not examined.

Diagnosis.

This species is similar to S. chuan sp. nov. but easily distinguished by a male palp with small tegular lobe (TL, Lo et al. 2024a: figs 25B, 26B vs lacking, Figs 3C, 4A–C), by tip of cymbium ca 1/3 of overall length of cymbium (Lo et al. 2024a: figs 25B–D, 26A–C vs 1/2, Fig. 3A–D), by tip of cymbium blunt (Lo et al. 2024a: figs 25B–D, 26A–C vs sharply pointed, Fig. 3A–C), by base of conductor (C) weakly sclerotized and brown (Lo et al. 2024a: fig. 25B vs transparent, Figs 3A–C, 4B–C), and by retrolateral tibial apophysis (RTA) ca 1/2 of tibial length (figs 25B–D, 26A–C in Lo et al. 2024a vs 1/3, Fig. 3A–D).

Description.

See Lo et al. (2024a, 2024b).

Distribution.

China (Taiwan, type locality; Fig. 1).

. Shuqiangius chuan

Wang, Marusik & Yao sp. nov.

45021F01-7050-58FE-B3F8-B06AC7C77682

https://zoobank.org/FE6F540-277E-451A-9B05-978FF0356B8B

Figs 2, 3, 4, 5, 6

Type material.

Holotype: China • ♂; Sichuan, Jiangyou Co., Chonghua Town, Wuma Rd; 32.0259°N, 104.9275°E; elev. 796 m; 15 May 2024; X. Zhang, Y. Wang & Q. Meng leg.; SYNU-Ar00496. Paratypes: China • 2♀; same data as for holotype; SYNU-Ar00497–98 • 1♂; Sichuan, Lushan Co., Feixianguan Town, Longdongpo Vill.; 30.0900°N, 103.0675°E; elev. 905 m; 24 May 2024; X. Zhang, Y. Wang & Q. Meng leg.; SYNU-Ar00499 • 1♀; same data as for preceding; SYNU-Ar00500 • 1♀; Sichuan, Liangshan Yi Aut. Pref., Mianning Co., Yihai Town, Damawu Vill.; 28.6107°N, 102.2369°E; elev. 2213 m; 9 Jun 2024; X. Zhang, Y. Wang & Q. Meng leg.; SYNU-Ar00501.

Etymology.

The specific name is derived from the type locality (Sichuan) and is a noun in apposition.

Diagnosis.

The new species is similar to S. rarobulbus comb. nov., but can be easily distinguished by a male palp lacking tegular lobe (TL, Figs 3C, 4A–C vs small, Lo et al. 2024a: figs 25B, 26B), by tip of cymbium ca 1/2 of overall length of cymbium (Fig. 3A–D vs 1/3, Lo et al. 2024a: figs 25B–D, 26A–C), by tip of cymbium sharply pointed (Fig. 3A–C vs blunt, Lo et al. 2024a: figs 25B–D, 26A–C), by base of conductor (C) transparent (Figs 3A–C, 4B–C vs weakly sclerotized and brown, Lo et al. 2024a: fig. 25B), and by retrolateral tibial apophysis (RTA) ca 1/3 of tibial length (Fig. 3A–D vs 1/2, Lo et al. 2024a: figs 25B–D, 26A–C).

Description.

Male (holotype): Total length 4.35; carapace length/width 1.85/1.59; abdomen length/width 2.50/1.33. Carapace egg-shaped, brownish, covered with white setae. Radial furrows indistinct and fovea longitudinal. In dorsal view, eyes with AER strongly recurved and PER strongly procurved. Ocular area blackish brown with dense setae (Fig. 2A). Eye diameters and inter-distances: AME 0.08, ALE 0.22, PME 0.16, PLE 0.15, AME–AME 0.09, AME–ALE 0.06, PME–PLE 0.24, ALE–PLE 0.15, PME–PME 0.24; eye sizes ALE > PME > PLE > AME. Clypeus height 0.38. Chelicerae yellowish brown, with 1 promarginal and 1 retromarginal teeth. Endite dark brown. Sternum dark brown, length/width 1.00/0.78. Legs yellowish (Fig. 2A, B). Measurements of palp and legs: palp 2.67 (0.70, 0.30, 0.32, 1.35), leg I 8.23 (2.25, 0.72, 2.20, 2.03, 1.03), leg II 7.81 (2.13, 0.70, 2.03, 2.00, 0.95), leg III 6.48 (1.88, 0.63, 1.54, 1.68, 0.75), leg IV 6.04 (1.70, 0.61, 1.33, 1.65, 0.75). Abdomen oval, dorsally dark brown, with yellow markings; laterally with yellow pattern; ventrally brown with yellow dashed spots nearly symmetrically distributed in the middle and at edges. Cardiac mark indistinct (Fig. 2A, B).

Palp as in Fig. 3A–D; femur length/width 0.72/0.21; patella length/width 0.28/0.21; tibia wider than long, with three apophyses. Retrolateral tibial apophysis (RTA) large and twisted; ventral tibial apophysis (VTA) digitiform or pointed; cymbium longer than femur, patella and tibia together; ca 2.7 times longer than wide, tip of cymbium very long ca 1/2 of cymbium length and longer than wide. Bulb ca 1.3 times wider than long. Tegular lobe (TL) lacking. Conductor (C) long and wide, with membranous base, tip bend and point toward proximal. Embolus (E) very long forming 360° loop and terminating almost in center of bulb, base of embolus (E) large located in retrolateral half of bulb.

Male leg spination:

Fe Pa Ti Mt
I 2d 2p 2r 2d 1r 3d 3p 2r 2v 3d 4p 5r 1v
II 3d 1p 2r 2d 2r 2d 2p 2r 4v 4d 4p 4r
III 2d 1p 1r 2d 1r 2d 2p 2r 4v 4d 3p 2r 5v
IV 2d 1d 2d 2p 1r 2v 4d 4p 3r 2v
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Female (paratype, SYNU-Ar00497): Total length 5.15; carapace length/width 2.16/1.81; abdomen length/width 2.99/2.32. Carapace brown, covered with dense white setae, except for medially. Eye diameters and inter-distances: AME 0.06, ALE 0.20, PME 0.17, PLE 0.16, AME–AME 0.13, AME–ALE 0.06, PME–PLE 0.25, ALE–PLE 0.18, PME–PME 0.30; eye sizes ALE > PME > PLE > AME. Clypeus height 0.51. Sternum length/width 1.05/0.88. Measurements of palps and legs: palp 2.12 (0.59, 0.34, 0.46, 0.73), leg I 7.72 (2.33, 0.76, 1.98, 1.66, 0.99), leg II 7.12 (2.13, 0.74, 1.80, 1.56, 0.89), leg III 5.93 (1.82, 0.65, 1.30, 1.40, 0.76), leg IV 5.64 (1.68, 0.64, 1.20, 1.38, 0.74). Abdomen light yellow, with brown median band, sides darker; venter with broad, dark, median band from epigastric furrow to spinnerets, and light yellowish bands along median band (Fig. 5B, E).

Epigyne and endogyne as in Fig. 6B, E; epigynal plate about as wide as long, with large entirely rebordered atrium, 1.5 times longer than wide, widest in anterior 1/5; posteriorly with distinct pocket (PP); medially atrium with kind of septum (not rebordered, just raised median part). Copulatory openings (CO) anteriorly situated. Copulatory ducts (CD) curved. Fertilization ducts (FD) slender with hook-like terminal.

Female leg spination:

Fe Pa Ti Mt
I 2d 2p 2r 2d 1p 1r 2d 3p 2r 4v 4d 3p 3r 5v
II 2d 1p 2r 1d 1r 1p 4d 2p 2r 4v 4d 3p 3r 5v
III 2d 1p 1r 2d 1r 2d 2p 2r 4v 4d 3p 3r 5v
IV 3d 1p 1r 2d 1r 2d 1p 1r 2v 6d 1p 1r 5v
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Variation.

SYNU-Ar00498, 500–501: Total length 4.90, 5.33, 5.77; carapace length 2.10, 2.13, 2.14. Abdomen from light to almost uniformly brown (Fig. 5A, C, D, F).

Distribution.

China (Sichuan, type locality; Fig. 1).

Supplementary Material

XML Treatment for Shuqiangius
XML Treatment for Shuqiangius rarobulbus
XML Treatment for Shuqiangius chuan

Acknowledgements

The manuscript benefited greatly from comments by Joseph KH Koh, Luyu Wang, and an anonymous reviewer.

Citation

Wang Y, Meng Q, Marusik YM, Yao Z (2025) Shuqiangius gen. nov., a new genus of Oxyopidae (Arachnida, Araneae) from China. ZooKeys 1261: 189–200. https://doi.org/10.3897/zookeys.1261.171511

Footnotes

Ying Wang and Qingzhen Meng contributed equally to this work.

Contributor Information

Yuri M. Marusik, Email: yurmar62@gmail.com.

Zhiyuan Yao, Email: yaozy@synu.edu.cn.

Additional information

Conflict of interest

The authors have declared that no competing interests exist.

Ethical statement

No ethical statement was reported.

Use of AI

No use of AI was reported.

Funding

This study was supported by the Science & Technology Fundamental Resources Investigation Program of China (2023FY100200), the National Natural Science Foundation of China (NSFC-32170461, 31872193), and the Basic Scientific Research Projects funded by the Educational Department of Liaoning Province (LJ222510166003).

Author contributions

ZY and YM designed the study. YM, YW and ZY performed morphological species identification. YW and QM finished the descriptions and took the photos. YW, QM, YM, and ZY drafted and revised the manuscript.

Author ORCIDs

Ying Wang https://orcid.org/0009-0007-9173-4438

Qingzhen Meng https://orcid.org/0009-0009-1143-676X

Yuri M. Marusik https://orcid.org/0000-0002-4499-5148

Zhiyuan Yao https://orcid.org/0000-0002-1631-0949

Data availability

All of the data that support the findings of this study are available in the main text.

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Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

XML Treatment for Shuqiangius
zookeys.1261.171511-treatment1.xml (23.3KB, xml)
XML Treatment for Shuqiangius rarobulbus
zookeys.1261.171511-treatment2.xml (11KB, xml)
XML Treatment for Shuqiangius chuan
zookeys.1261.171511-treatment3.xml (26.1KB, xml)

Data Availability Statement

All of the data that support the findings of this study are available in the main text.

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