Abstract
Three new species of the spider genus Pimoa Chamberlin & Ivie, 1943 are described: P. pingwuensis n. sp. (♂♀) and P. yajiangensis n. sp. (♀) from Sichuan and P. zekogensis n. sp. (♂) from Qinghai. These new species are distinguished from other known Pimoa species by genital characters as well as by DNA barcodes. Detailed descriptions, photographs of genital characters and somatic features, a distribution map, comparisons to closely related species and DNA barcodes of the new species are presented. Illustrations of new species are provided and their phylogenetic relationships within the genus Pimoa are also discussed.
References
Chamberlin, R.V. & Ivie, W. (1943) New genera and species of North American linyphiid spiders. Bulletin of the University of Utah, 33 (10), 1–39. https://doi.org/10.3897/zookeys.855.33501
Folmer, O., Black, M.B. & Hoeh, W.R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular marine biology and biotechnology, 3, 5.
Gertsch, W.J. & Ivie, W. (1936) Descriptions of new American spiders. American Museum Novitates, 858, 1–25.
Griswold, C.E., Long, C.L. & Hormiga, G. (1999) A new spider of the genus Pimoa from Gaoligong Mountains, Yunnan, China (Araneae, Araneoidea, Pimoidae). Acta Botanica Yunnanica Supplement, 11, 91–97.
Hormiga, G. & Tu, L. (2008) On Putaoa, a new genus of the spider family Pimoidae (Aeaneae) from China, with a cladistic test of its monophyly and phylogenetic placement. Zootaxa, 1792 (1), 1–21. https://doi.org/10.11646/zootaxa.1792.1.1
Hormiga, G. (1994) A revision and cladistic analysis of the spider family Pimoidae (Araneoidea: Araneae). Smithsonian Contributions to Zoology, 549, 1–104. https://doi.org/10.5479/si.00810282.549
Hormiga, G. (2003) Weintrauboa, a new genus of pimoid spiders from Japan and adjacent islands, with comments on the monophyly and diagnosis of the family Pimoidae and the genus Pimoa (Araneoidea, Araneae). Zoological Journal of the Linnean Society, 139, 261–281. https://doi.org/10.1046/j.1096-3642.2003.00072.x
Hormiga, G., Buckle, D.J. & Scharff, N. (2005) Nanoa, an enigmatic new genus of pimoid spiders from western North America (Pimoidae, Araneae). Zoological Journal of the Linnean Society, 145 (2), 249–262. https://doi.org/10.1111/j.1096-3642.2005.00192.x
Hormiga, G., Kulkarni, S., da Silva Moreira, T. & Dimitrov, D. (2021) Molecular phylogeny of pimoid spiders and the limits of Linyphiidae, with a reassessment of male palpal homologies (Araneae, Pimoidae). Zootaxa, 5026 (1), 71–101. https://doi.org/10.11646/zootaxa.5026.1.3
Irfan, M., Wang, L.Y. & Zhang, Z.S. (2021) Two new species of the spider genus Pimoa Chamberlin & Ivie, 1943 (Araneae, Pimoidae) from China. Acta Arachnologica Sinica 30 (2): 113-117. https://doi.org/10.3969/j.issn.1005-9628.2021.02.06
Kumar, S., Stecher, G. & Tamura, K. (2016). MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Molecular Biology and Evolution, 33, 1870–1874.
Lanfear, R., Calcott, B., Ho, S.Y.W. & Guindon, S. (2012) PartitionFinder: Combined selection of partitioning schemes and substitution models for phylogenetic analyses [J]. Molecular Biology and Evolution, 29 (6), 1695–1701. https://doi.org/10.1093/molbev/mss020
Lin, Y.J., Marusik, Y.M., Gao, C.X., Xu, H., Zhang, X.Q., Wang, Z.Y., Zhu, W.H. & Li, S.Q. (2021) Twenty-three new spider species (Arachnida: Araneae) from Asia. Zoological Systematics, 46 (2), 91–152. https://doi.org/10.11865/zs.2021201
Rambaut, A., Suchard, M.A., Xie, D. & Drummond, A.J. (2014) Tracer. Version 1.6. Internet. Available from: http://beast.bio.ed.ac.uk/Tracer (accessed 20 December 2021)
Rambaut, A. (2014) FigTree. Version 1.4.3. Available from: http://tree.bio.ed.ac.uk/software/figtree (accessed 20 December 2021)
Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D.L., Darling, A., Höhna S, Larget, B., Liu, L., Suchard, M.A. & Huelsenbeck, J.P. (2012) MrBayes 3.2: Efficient Bayesian Phylogenetic Inference and Model Choice Across a Large Model Space [J]. Systematic Biology, 61 (3), 539–542. https://doi.org/10.1093/sysbio/sys029
Schulmeister, S., Wheeler, W.C. & Carpenter, J.M. (2002) Simultaneous analysis of the basal lineages of Hymenoptera (Insecta) using sensitivity analysis. Cladistics-the International Journal of the Willi Hennig Society, 18 (5), 455–484. https://doi.org/10.1111/j.1096-0031.2002.tb00287.x
WSC (2020) World Spider Catalog. Version 22.0. Natural History Museum Bern, Bern. Available from: http://wsc.nmbe.ch (accessed 3 May 2021)
Wunderlich, J. (1986) Spinnenfauna gestern und heute: Fossile Spinnen in Bernstein und ihre heute lebenden Verwandten. Quelle & Meyer, Wiesbaden, 283 pp.
Xu, H., Zhang, X.Q., Yao, Z.Y., Ali, A. & Li, S.Q. (2021) Thirty-five new species of the spider genus Pimoa (Araneae,Pimoidae) from Pan-Himalaya. ZooKeys, 1029, 1–92. https://doi.org/10.3897/zookeys.1029.64080
Xu, X. & Li, S.Q. (2007) Taxonomic study of the spider family Pimoidae (Arachnida: Araneae) from China. Zoological Studies, 46, 483–502.
Xu, X. & Li, S.Q. (2009) Three new pimoid spiders from Sichuan Province, China (Araneae: Pimoidae). Zootaxa, 2298 (1), 55–63. https://doi.org/10.11646/zootaxa.2298.1.4
Yuan, L., Zhao, L.J. & Zhang, Z.S. (2019) Preliminary study on the spider diversity of the Wanglang National Nature Reserve. Acta Arachnologica Sinica, 28 (1), 7–36. https://doi.org/10.3969/j.issn.1005-9628.2019.01.002
Zhang, X.Q. & Li, S.Q. (2019) On three species of the spider genus Pimoa (Araneae, Pimoidae) from China. ZooKeys, 855, 1–13. https://doi.org/10.3897/zookeys.855.33501
Zhang, X.Q., Lan, T.Q., Nie, L. & Li, S.Q. (2020) Eight new species of the spider genus Pimoa (Araneae, Pimoidae) from Tibet, China. ZooKeys, 940, 79–104. https://doi.org/10.3897/zookeys.940.49793