Research Article |
Corresponding author: Xiaoqi Mi ( mixiaoqi1018@163.com ) Academic editor: Zhiyuan Yao
© 2023 Xiaoqi Mi, Cheng Wang, Jiahui Gan.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Mi X, Wang C, Gan J (2023) Six new species of the orb-weaver spider genus Araneus Clerck, 1757 (Araneae, Araneidae) and a redescription of A. colubrinus Song & Zhu, 1992 from Fanjingshan National Nature Reserve, Guizhou, China. ZooKeys 1173: 243-273. https://doi.org/10.3897/zookeys.1173.106315
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Six new species of the genus Araneus Clerck, 1757 from Fanjingshan National Nature Reserve in Guizhou Province, China are described: Araneus chenjingi sp. nov. (♂♀), and A. yuboi sp. nov. (♂♀) are assigned to the A. diadematus group; A. lihaiboi sp. nov. (♂♀), A. shii sp. nov. (♂♀), A. wanghuai sp. nov. (♂♀), and A. yangchuandongi sp. nov. (♂♀) are assigned to the A. sturmi group. Araneus colubrinus Song & Zhu, 1992 is redescribed. A new synonym of Araneus colubrinus Song & Zhu, 1992 is proposed: Araneus octodentalis Song & Zhu, 1992 syn. nov.
Arachnida, morphology, new synonym, taxonomy, Wuling Mountains
Fanjingshan National Nature Reserve lies in northeast Guizhou Province, southwest China, the main peak of Wuling Mountains, with the highest altitude of 2572 m. It is the only habitat of Guizhou snub-nosed monkey (Rhinopithecus brelichi Thomas). The spider fauna of this region was first deeply investigated by
Araneus Clerck, 1757 is the largest genus of the orb-weaver spider family Araneidae, and the Chinese Araneus fauna was summarized by
All the specimens were collected by beating shrubs or hand collecting and are preserved in 75% ethanol. Type specimens of the new species are deposited in the Museum of Tongren University, China (TRU). The specimens were examined with an Olympus SZX16 stereomicroscope. The epigynes were cleared in lactic acid for examination and imaging. The left male pedipalp was dissected in ethanol for examination, description, and imaging, and was expanded in lactic acid when necessary. Photographs of the habitus and copulatory organs were taken with a Kuy Nice digital camera mounted on an Olympus BX43 compound microscope. Compound focus images were generated using Helicon Focus v. 6.7.1. The paths of the left copulatory ducts were drawn using Adobe Illustrator CC 2018.
All measurements are given in millimeters. Leg measurements are given as total length (femur, patella + tibia, metatarsus, tarsus). Abbreviations used in the text and figures are as follows: ALE anterior lateral eye; AME anterior median eye; C conductor; CD copulatory duct; CO copulatory opening; E embolus; EB embolic base; EL embolic lamella; EN embolic node; ET embolic tooth; FD fertilization duct; MA median apophysis; MOA median ocular area; PLE posterior lateral eye; PME posterior median eye; Sc scape; Sp spermatheca; ST subterminal apophysis; TA terminal apophysis.
Araneus Clerck, 1757: 22
Araneus angulatus Clerck, 1757.
We place the six new species in the genus Araneus provisionally because they share very similar habitus and copulatory organs with other Araneus species, although they are very different from the generotype Araneus angulatus in somatic and genitalic structures. Grouping of the species is according to
Holotype ♂ (TRU-Araneidae-178), China: Guizhou Province, Tongren City, Songtao Miao Autonomous County, Wuluo Township, Taohuayuan Village, Yangaoping (27°58.71'N, 108°45.86'E, ca 1620 m), 2.IV.2022, X.Q. Mi et al. leg. Paratypes: 3♀ (TRU-Araneidae-179–181), same data as holotype.
The new species resembles A. seminiger (L. Koch, 1878) in coloration of abdomen, but differs in: 1) conductor membranous, without pointed tip (Fig.
Male (holotype, Figs
Araneus chenjingi sp. nov. A–H female paratype TRU-Araneidae-179 I, J male holotype A epigyne, ventral view B ibid., posterior view C ibid., anterior view D ibid., lateral view E vulva, anterior view F habitus, dorsal view G ibid., ventral view H ibid., lateral view I ibid., dorsal view J ibid., lateral view. Scale bars: 0.1 mm (A–E); 1 mm (F–J). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Araneus chenjingi sp. nov. male holotype A pedipalp, prolateral view B ibid., retrolateral view C ibid., ventral view D ibid., apical view E part of expanded bulb. Scale bars: 0.1 mm. Abbreviations: C conductor, E embolus, EL embolic lamella, MA median apophysis, ST subterminal apophysis, TA terminal apophysis.
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-179, Fig.
Epigyne
(Fig.
Total length: ♀♀ 4.15–5.20 (n = 3).
Known only from type locality.
The wide oval female abdomen with a pair of anterior lateral humps, and the long, ridged scape indicate that the new species belongs to the A. diadenmatus group.
The species is named after Mr. Jing Chen (Fanjingshan National Nature Reserve Administration Bureau), who offered help with specimen collection for this research; noun in genitive case.
Araneus colubrinus
Song & Zhu, 1992: 169, fig. 4A, B; Song and Li 1997: 413, fig. 16A, B;
Araneus octodentalis
Song & Zhu, 1992: 169, fig. 5A, B; Song and Li 1997: 414, fig. 17A, B;
4♂5♀ (TRU-Araneidae-182–190), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Ziwei Township, Dayuanzhi Village, Huguosi (27°54.54'N, 108°46.57'E, ca 1660 m), 9.V.2020, X.Q. Mi et al. leg.
This species resembles A. yangchuandongi sp. nov., A. conexus Liu, Irfan, Yang & Peng, 2019, and A. zhoui Mi & Wang, 2023 in somatic morphology, but it can be distinguished from A. yangchuandongi sp. nov. in: 1) carapace lacking macrosetae anterior to fovea (Fig.
Araneus colubrinus Song & Zhu, 1992 A–G female TRU-Araneidae-183 H, I male TRU-Araneidae-182 A epigyne, ventral view B ibid., lateral view C ibid., posterior view D vulva, anterior view E habitus, dorsal view F ibid., ventral view G ibid., lateral view H ibid., dorsal view I ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–I). Abbreviations: CD copulatory duct, CO copulatory opening, Sc scape, Sp spermatheca.
Araneus colubrinus Song & Zhu, 1992, male TRU-Araneidae-182 A pedipalp, prolateral view B ibid., retrolateral view C ibid., ventral view D ibid., apical view E part of expanded bulb. Scale bars: 0.1 mm. Abbreviations: C conductor, E embolus, EB embolic base, MA median apophysis, ST subterminal apophysis, TA terminal apophysis.
Male (TRU-Araneidae-182, Figs
Pedipalp
(Fig.
Female (TRU-Araneidae-183, Fig.
Epigyne
(Fig.
Total length: ♂♂ 3.65–3.85 (n = 4); ♀♀ 4.65–5.20 (n = 5).
Hubei, Guizhou.
The holotypes of Araneus colubrinus (only known from a single female) and Araneus octodentalis (only known from a single male) were not examined, but both species can be easily recognized due to the perfect illustrations (
Holotype ♂ (TRU-Araneidae-191), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Ziwei Township, Dayuanzhi Village, Mianxüling (27°54.89'N, 108°40.17'E, ca 1690 m), 14.VI.2020, C. Wang & J.H. Gan leg. Paratypes: 1♂3♀ (TRU-Araneidae-192–195), same data as for holotype; 1♂ (TRU-Araneidae-196), Huguosi (27°54.72'N, 108°28.62'E, ca 1500 m), 25.IV.2020, X.Q. Mi & C. Wang leg.
The new species resembles A. falcatus Guo, Zhang & Zhu, 2011 in somatic and genital structures, but differs in: 1) embolus slightly curved in prolateral view (Fig.
Araneus lihaiboi sp. nov. A–F female paratype TRU-Araneidae-192 G, H male holotype A epigyne, ventral view B ibid., posterior view C ibid., lateral view D vulva, posterior view E habitus, dorsal view F ibid., ventral view G ibid., dorsal view H ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–H). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Araneus lihaiboi sp. nov. male holotype A pedipalp, prolateral view B ibid., retrolateral view C ibid., ventral view D ibid., apical view E part of expanded bulb. Scale bars: 0.1 mm. Abbreviations: C conductor, E embolus, MA median apophysis, ST subterminal apophysis, TA terminal apophysis.
Male (holotype, Figs
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-192, Fig.
Epigyne
(Fig.
Total length: ♂♂ 2.60–2.90 (n = 3); ♀♀ 3.75–4.70 (n = 3).
Known only from type locality.
The oval abdomen, the long, twisted, and ridged scape, and the male pedipalp with a bifurcated median apophysis and arched terminal apophysis indicate that the new species belongs to the A. sturmi group.
The species is named after Mr. Haibo Li (Fanjingshan National Nature Reserve Administration Bureau), who provided tremendous support during fieldwork; noun in genitive case.
Holotype ♂ (TRU-Araneidae-197), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Muhuang Township, Jinchang Village, Maxi’ao (28°1.37'N, 108°45.00'E, ca 1340 m), 10.V.2020, X.Q. Mi et al. leg. Paratypes: 4♀ (TRU-Araneidae-198–201), same data as for holotype; 3♂6♀ (TRU-Araneidae-202–210), same locality, 26.IV.2020, X.Q. Mi & C. Wang leg.; 1♀ (TRU-Araneidae-211), Ziwei Township, Dayuanzhi Village, Huguosi (27°54.54'N, 108°46.57'E, ca 1660 m), 9.V.2020, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-212), Mianxüling (27°54.89'N, 108°40.17'E, ca 1790 m), 23.VII.2021, X.Q. Mi et al. leg.
Females of the new species resembles A. flagelliformis Zhu & Yin, 1998 in appearance, but can be distinguished as follows: 1) scape with nearly parallel sides in ventral view (Fig.
Araneus shii sp. nov. A–F female paratype TRU-Araneidae-198 G, H male holotype A epigyne, ventral view B ibid., lateral view C ibid., posterior view D vulva, anterior view E habitus, dorsal view F ibid., ventral view G ibid., dorsal view H ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–H). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Male (holotype, Figs
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-198, Fig.
Epigyne
(Fig.
Total length: ♂♂ 3.45–3.80 (n = 4), ♀♀ 4.45–5.25 (n = 12).
Known only from type locality.
The wide oval abdomen, long and ridged scape, and the male pedipalp with a bifurcated median apophysis indicate that the new species belongs to the A. sturmi group.
The specific name is a patronym of Mr. Lei Shi (Fanjingshan National Nature Reserve Administration Bureau), who helped us greatly with specimen collection on this research; noun in genitive case.
Holotype ♂ (TRU-Araneidae-213), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Ziwei Township, Dayuanzhi Village, Huguosi (27°54.72'N, 108°28.62'E, ca 1500 m), 9.V.2021, X.Q. Mi et al. leg. Paratypes: 2♂2♀ (TRU-Araneidae-214–217), same data as for holotype; 1♂ (TRU-Araneidae-218), same locality as holotype, 24.IV.2020, X.Q. Mi & C. Wang leg.; 9♀ (TRU-Araneidae-219–227), Mianxüling (27°54.89'N, 108°40.17'E, ca 1790 m), 14.VI.2019, C. Wang & J.H. Gan leg.; 1♀ (TRU-Araneidae-228), Mianxüling (27°54.89'N, 108°40.17'E, ca 1790 m), 23.VII.2021, X.Q. Mi et al. leg.; 3♂2♀ (TRU-Araneidae-229–233), Mianxüling (27°54.83'N, 108°40.03'E, ca 2000 m), 9.V.2020, X.Q. Mi et al. leg.; 1♂ (TRU-Araneidae-234), Muhuang Township, Jinchang Village, Maxi’ao (28°1.37'N, 108°45.00'E, ca 1340 m), 26.IV.2020, X.Q. Mi & C. Wang leg.; 2♂ (TRU-Araneidae-235–236), same locality, 10.V.2020, X.Q. Mi et al. leg.
1♂ (TRU-Araneidae-237), China: Guizhou Province, Qiandongnan Miao and Dong Autonomous Prefecture, Leishan County, Danjiang Township, Xiannütang, Leigongshan National Nature Reserve (26°22.38'N, 108°11.87'E, ca 1550 m), 29.IV.2018, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-238), Danjiang Township, Leigongshan National Nature Reserve (26°22.86'N, 108°11.79'E, ca 1790 m), 30.IV.2018, X.Q. Mi et al. leg.
Araneus albabdominalis Zhu, Zhang, Zhang & Chen, 2005, 1♂1♀ (TRU-Araneidae-239–240), Huguosi (27°54.54'N, 108°46.57'E, ca 1660 m), 9.V.2020, X.Q. Mi et al. leg.
The new species resembles A. albabdominalis Zhu, Zhang, Zhang & Chen, 2005 in genital structures, but differs in: 1) distal embolic lamella slightly clockwise curved in prolateral view (Fig.
Araneus wanghuai sp. nov. A–F female paratype TRU-Araneidae-214 G, H male holotype A epigyne, ventral view B ibid., posterior view C ibid., lateral view D vulva, anterior view E habitus, dorsal view F ibid., ventral view G ibid., dorsal view H ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–H). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Male (holotype, Figs
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-214, Fig.
Epigyne
(Fig.
Total length: ♂♂ 3.15–3.30 (n = 11); ♀♀ 3.55–4.40 (n = 15). Dark spots on abdomen sometimes inconspicuous.
Guizhou (Yinjiang, Leishan).
The female abdomen wide oval with a pair of anterior lateral humps, the long, ridged scape, and the male pedipalp with a wide terminal apophysis indicate that the new species belongs to the A. diadenmatus group.
The species is named after Mr. Hua Wang (Fanjingshan National Nature Reserve Administration Bureau), who assisted greatly in field trips; noun in genitive case.
Holotype ♂ (TRU-Araneidae-241), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Ziwei Township, Dayuanzhi Village, Huguosi (27°54.72'N, 108°28.62'E, ca 1500 m), 24.IV.2020, X.Q. Mi & C. Wang leg. Paratypes: 1♀ (TRU-Araneidae-242), same locality as for holotype, 25.IV.2020, X.Q. Mi & C. Wang leg.; 2♀ (TRU-Araneidae-243–244), same locality as holotype, 8.V.2020, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-245), same locality as holotype, 9.V.2020, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-246), Dayuanzhi Village, Wanjuanshu (27°55.07'N, 108°37.67'E, ca 1200 m), 25.IV.2020, X.Q. Mi & C. Wang leg.; 1♀ (TRU-Araneidae-247), Huguosi (27°54.54'N, 108°46.57'E, ca 1660 m), 9.V.2020, X.Q. Mi et al. leg.; 1♂ (TRU-Araneidae-248), Songtao Miao Autonomous County, Wuluo Township, Taohuayuan Village (27°59.10'N, 108°46.15'E, ca 1230 m), 4.IV.2022, C. Wang & X. Chen leg.
1♀ (TRU-Araneidae-249), China: Guizhou Province, Qiandongnan Miao and Dong Autonomous Prefecture, Leishan County, Danjiang Township, Xiannütang, Leigongshan National Nature Reserve (26°22.38'N, 108°11.87'E, ca 1550 m), 29.IV.2018, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-250), same locality (26°22.86'N, 108°11.79'E, ca 1790 m), 30.IV.2018, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-251), Danjiang Township, Xiangshuiyan, Leigongshan National Nature Reserve (26°21.73'N, 108°9.59'E, ca 1200 m), 1.V.2018, G.J. Tian & H. Liu leg.; 1♀ (TRU-Araneidae-252), Fangxiang Township, Queniao Village, Leigongshan National Nature Reserve (26°25.01'N, 108°13.78'E, ca 1150 m), 2.V.2018, X.Q. Mi et al. leg.; 1♀ (TRU-Araneidae-253), Tongren City, Shiqian County, Ganxi Township, Fuyan Village, Jiuchashu, Fodingshan National Nature Reserve (27°20.62'N, 108°3.56'E, ca 1410 m), 7.VI.2019, C. Wang et al. leg.
The new species resembles A. colubrinus Song & Zhu, 1992 in appearance, but differs in: 1) copulatory openings slit-shaped (Fig.
Araneus yangchuandongi sp. nov. A–F female paratype TRU-Araneidae-242 G, H male holotype A epigyne, ventral view B ibid., anterior view C ibid., lateral view D vulva, posterior view E habitus, dorsal view F ibid., ventral view G ibid., dorsal view H ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–H). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Araneus yangchuandongi sp. nov. male holotype A pedipalp, prolateral view B ibid., retrolateral view C ibid., ventral view D ibid., apical view E part of expanded bulb. Scale bars: 0.1 mm. Abbreviations: C conductor, E embolus, EB embolic base, EN embolic node, ET embolic tooth, MA median apophysis, ST subterminal apophysis, TA terminal apophysis.
Male (holotype, Figs
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-242, Fig.
Epigyne
(Fig.
Total length: ♂♂ 3.90–4.00 (n = 2); ♀♀ 4.10–6.20 (n = 12).
Guizhou (Yinjiang, Songtao, Leishan, Shiqian).
The oval abdomen and the long, ridged, distally spoon-shaped scape indicate that the new species belongs to the A. sturmi group. The somatic morphology and genitalia indicate that the new species is most similar to A. colubrinus, A. conexus, and A. zhoui.
The species is named after Mr. Chuandong Yang (Fanjingshan National Nature Reserve Administration Bureau), who has been committed to biodiversity conservation of Fanjingshan National Nature Reserve for the past 40 years; noun in genitive case.
Holotype ♂ (TRU-Araneidae-254), China: Guizhou Province, Tongren City, Yinjiang Tujia and Miao Autonomous County, Ziwei Township, Dayuanzhi Village, Mianxüling (27°54.89'N, 108°40.17'E, ca 1790 m), 14.VI.2019, C. Wang & J.H. Gan leg; Paratypes: 4♂4♀ (TRU-Araneidae-255–262), same data as for holotype; 2♂ (TRU-Araneidae-263–264), same locality (27°54.83'N, 108°40.03'E, ca 2000 m), 9.V.2020, X.Q. Mi et al. leg.; 3♀ (TRU-Araneidae-265–267), same locality (27°54.89'N, 108°40.17'E, ca 1790 m), 23.VII.2021, X.Q. Mi et al. leg.
The new species resembles A. bimaculicollis Hu, 2001 in appearance, but differs in: 1) scape with nearly parallel sides (Fig.
Araneus yuboi sp. nov. A–F female paratype TRU-Araneidae-255 G, H male holotype A epigyne, ventral view B ibid., anterior view C ibid., posterior view D vulva, posterior view E habitus, dorsal view F ibid., ventral view G ibid., dorsal view H ibid., lateral view. Scale bars: 0.1 mm (A–D); 1 mm (E–H). Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sc scape, Sp spermatheca.
Araneus yuboi sp. nov. male holotype A pedipalp, prolateral view B ibid., retrolateral view C ibid., ventral view D ibid., apical view E part of expanded bulb. Scale bars: 0.1 mm. Abbreviations: C conductor, E embolus, EL embolic lamella, MA median apophysis, ST subterminal apophysis, TA terminal apophysis.
Male (holotype, Figs
Legs of Araneus spp., male, prolateral view A–D A. chenjingi sp. nov., holotype E–H Araneus colubrinus Song & Zhu, 1992 TRU-Araneidae-182 I–L A. lihaiboi sp. nov., holotype M–P A. shii sp. nov., holotype A, E, I, M legs I B, F, J, N legs II C, G, K, O legs III D, H, L, P legs IV. Scale bars: 1 mm.
Pedipalp
(Fig.
Female (paratype TRU-Araneidae-255, Fig.
Epigyne
(Fig.
Total length: ♂♂ 3.30–4.25 (n = 7); ♀♀ 4.30–5.55 (n = 7).
Known only from type locality.
The female abdomen wide oval with a pair of anterolateral humps, the long, ridged scape indicate that the new species belongs to the A. diadenmatus group.
The species is named after Mr. Bo Yu (Fanjingshan National Nature Reserve Administration Bureau), who accompanied us on field collections; noun in genitive case.
This manuscript benefitted greatly from comments by subject editor Zhiyuan Yao (Shenyang, China), referee Yanfeng Tong (Shenyang, China) and an anonymous referee. We are grateful to Guijie Tian, Yuanfa Yang, Hong Liu, Yufan Zhang, Siyi Yan, Chaoguan Qin, and Xuan Chen for collecting the specimens.
The authors have declared that no competing interests exist.
No ethical statement was reported.
This research was supported by the Science and Technology Project Foundation of Guizhou Province ([2020]1Z014), the National Natural Science Foundation of China (NSFC-31660609, 32200369), and the Key Laboratory Project of Guizhou Province ([2020]2003).
Mi xiaoqi contributed to the conception of the study and identified the specimens.Wang cheng wrote the manuscript. Gan jiahui prepared the figures.
Xiaoqi Mi https://orcid.org/0000-0003-1744-3855
All of the data that support the findings of this study are available in the main text.