Abstract
A new genus of the spider family Corinnidae, Spinirta gen. nov., with nine new species is described from southern China: S. jinyunshanensis sp. nov., S. forcipata sp. nov., S. sparsula sp. nov., S. aurita sp. nov., S. aviforma sp. nov., S. quadrata sp. nov., S. leigongshanensis sp. nov., S. qizimeiensis sp. nov. and S. rugosa sp. nov.. Further, one species is transferred from Allomedmassa Dankittipakul & Singtripop, 2014 to this new genus as Spinirta qiaoliaoensis (Lu & Chen, 2019) comb. nov.. The new genus is a close relative of Allomedmassa, Medmassa Simon, 1887 and Paramedmassa Jin, Zhang & Zhang, 2019, but can be distinguished by the unique spines on the ventral surface of the RTA of the male palp, and the anteriorly situated, large, separated COs or fused into a large atrium of the female epigyne.
References
Bonaldo, A.B. (2000) Taxonomia da subfamília Corinninae (Araneae, Corinnidae) nas regiões Neotropica e Neárctica. Iheringia, Série Zoologia, 89, 3–148.
https://doi.org/10.1590/S0073-47212000000200001
Dankittipakul, P. & Singtripop, T. (2014) Allomedmassa, a new spider genus from evergreen forests of Southeast Asia (Araneae: Corinnidae). Revue Suisse de Zoologie, 121, 15–31.
Deeleman-Reinhold, C.L. (2001) Forest spiders of South East Asia: with a revision of the sac and ground spiders (Araneae: Clubionidae, Corinnidae, Liocranidae, Gnaphosidae, Prodidomidae and Trochanterriidae [sic]). Brill, Leiden, 591 pp.
Haddad, C.R. & Bosselaers, J. (2010) A revision of the genus Medmassa Simon, 1887 (Araneae: Corinnidae) in the Afrotopical Region. Zootaxa, 2361 (1), 1–12.
https://doi.org/10.11646/zootaxa.2361.1.1
Jin, C., Zhang, H.L. & Zhang, F. (2019) First records of the corinnid genera Allomedmassa Dankittipakul & Singtripop, 2014 and Medmassa Simon, 1887 from China, with the description of a new genus (Araneae: Corinnidae). Zootaxa, 4585 (3), 459–477.
https://doi.org/10.11646/zootaxa.4585.3.3
Lu, J.S., Tian, Q. & Chen, J. (2019) A new species of the genus Allomedmassa from Wuling Mountains, China (Araneae: Corinnidae). Acta Arachnologica Sinica, 28, 41–46.
https://doi.org/10.3969/j.issn.1005-9628.2019.01.004
Ramírez, M.J. (2014) The morphology and phylogeny of dionychan spiders (Araneae: Araneomorphae). Bulletin of the American Museum of Natural History, 390, 1–374.
Raven, R.J. (2015) A revision of ant-mimicking spiders of the family Corinnidae (Araneae) in the Western Pacific. Zootaxa, 3958 (1), 1–258.
https://doi.org/10.11646/zootaxa.3958.1.1
Simon, E. (1887) Observation sur divers arachnides: synonymies et descriptions. Annales de la Société Entomologique de France, Series 6, 7 (Bull.), 158–159 + 167 + 175–176 + 186–187 + 193–195.
Wheeler, W.C., Coddington, J.A., Crowley, L.M., Dimitrov, D., Goloboff, P.A., Griswold, C.E., Hormiga, G., Prendini, L., Ramírez, M.J., Sierwald, P., Almeida-Silva, L., Alvarez-Padilla, F., Arnedo, M.A., Benavides Silva, L.R., Benjamin, S.P., Bond, J.E., Grismado, C.J., Hasan, E., Hedin, M., Izquierdo, M.A., Labarque, F.M., Ledford, J., Lopardo, L., Maddison, W.P., Miller, G.A., Piacentini, L.N., Platnick, N.I., Polotow, D., Silva-Dávila, D., Scharff, N., Szűts, T., Ubick, D., Vink, C.J., Wood, H.M. & Zhang, J.X. (2017) The spider tree of life: phylogeny of Araneae based on target-gene analyses from an extensive taxon sampling. Cladistics, 33 (6), 576–616.
https://doi.org/10.1111/cla.12182
World Spider Catalog (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, Bern. Available from: http://wsc.nmbe.ch (accessed 31 March 2020)