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Type: Article
Published: 2022-11-28
Page range: 371-387
Abstract views: 276
PDF downloaded: 172

Taxonomic notes on leptonetid spiders from the Ryukyu Archipelago with the description of two new species and the first record of the genus Longileptoneta from Japan (Araneae: Leptonetidae)

Systematic Zoology Laboratory, Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, 192-0397, Tokyo, Japan.
Systematic Zoology Laboratory, Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, 192-0397, Tokyo, Japan.
Araneae caves endemic species Ishigaki-jima Island Okinawa-honto Island sinkhole subterranean environment

Abstract

The species belonging to the family Leptonetidae living in the Ryukyu Archipelago, Southwestern Japan, are herein discussed. Two species, Longileptoneta yamasakii sp. nov. and Masirana suzukii sp. nov., are described as new to science on the basis of both male and female. The new species were collected in caves in Yonaguni-jima Is. and Okinawa-honto Is., respectively the westernmost and largest islands of the Ryukyu arc. Longileptoneta yamasakii sp. nov. represents the first record of the genus Longileptoneta Seo, 2015 from Japan. The male and female of another leptonetid species previously known from the Ryukyus, Masirana longipalpis Komatsu, 1972, are redescribed and illustrated in detail. The internal genitalia of the female are shown and described for the first time.

 

References

  1. Ballarin, F. & Eguchi, K. (2022) Rediscovery of the troglobitic midget-cave spiders Masirana glabra (Komatsu, 1957) with redescription of the male and first description of the unknown female (Araneae: Leptonetidae). Acta Arachnologica, 71 (1), 53–58. https://doi.org/10.2476/asjaa.71.53
    Barrett, R.D.H. & Hebert, P.D.N. (2005) Identifying spiders through DNA barcodes. Canadian Journal of Zoology, 83, 481–491. https://doi.org/10.1139/z05-024
    Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3, 294–299.
    Yang, K.W., Li, H.C., Tong, Y.F. & Bian, D.J. (2022) A new genus and species of leptonetid spiders (Araneae, Leptonetidae) from Guangdong Province, China. Biodiversity Data Journal, 10 (e80219), 1–8. https://doi.org/10.3897/BDJ.10.e80219
    Komatsu, T. (1972) Two new cave spiders from Okinawa Island (genera Falcileptoneta and Masirana, Leptonetidae). Acta Arachnologica, 24 (2), 82–85. https://doi.org/10.2476/asjaa.24.82
    Ledford, J., Derkarabetian, S., Ribera, C., Starrett, J., Bond, J.E., Griswold, C. & Hedin, M. (2021) Phylogenomics and biogeography of leptonetid spiders (Araneae: Leptonetidae). Invertebrate Systematics, 35 (3), 332–349. https://doi.org/10.1071/IS20065
    Machida, H. & Kawana, T., Nagaoka, S., Ota, Y. & Moriwaki, H. (2001) Japanese Geology. Vol. 7. Kyushu and Nansei Islands, Tokyo University Press, Tokyo, 355 pp
    Seo, B.K. (2015) Four new species of the genera Masirana and Longileptoneta (Araneae, Leptonetidae) from Korea. Korean Journal of Environmental Biology, 33 (3), 306–313. https://doi.org/10.11626/KJEB.2015.33.3.306
    Shimojana, M. (1977) Preliminary report on the cave spider fauna of the Ryukyu Archipelago. Acta Arachnologica, 27 (Spec. No.), 337–365. https://doi.org/10.2476/asjaa.27.Specialnumber_337
    Suzuki, Y. & Ballarin, F. (2020) Nesticus kosodensis Yaginuma, 1972 bona species. Molecular and morphological separation from N. latiscapus Yaginuma, 1972 with notes on cave scaffold-web spiders subspecies in Japan (Araneae, Nesticidae). Subterranean Biology, 35, 79–96. https://doi.org/10.3897/subtbiol.35.53933
    Tanikawa, A. & Sasaki T. (1999) List of spiders from Okinawa Prefecture. Kishidaia, 76, 61–101.
    Tanikawa, A. (2022) A Check List of Japanese Spiders. Version 2022 R1. Available from: http://www.asahi-net.or.jp/~dp7a-tnkw/japan.pdf (accessed 30 September 2022)
    Wang, C.X., Li, S.Q. & Zhu, W.H. (2020). Taxonomic notes on Leptonetidae (Arachnida, Araneae) from China, with descriptions of one new genus and eight new species. Zoological Research, 41 (6), 684–704. https://doi.org/10.24272/j.issn.2095-8137.2020.214
    World Spider Catalog (2022) World Spider Catalog Version 22.5. Natural History Museum Bern, Bern. Available from: http://wsc.nmbe.ch (accessed 30 September 2022) https://doi.org/10.24436/2