Uaica gen. nov., a new genus of huntsman spiders from the Brazilian Amazonia (Araneae: Sparassidae)
Abstract
The new genus Uaica gen. nov. is proposed to include five new species, the type species, Uaica uatuma gen. et sp. nov. (♂♀) and U. mapia gen. et sp. nov. (♂) from Amazonas, U. carapiranga gen. et sp. nov. (♂♀), from Pará, U. karipuna gen. et sp. nov. (♂) from Rondônia and U. juruena gen. et sp. nov. (♀), from Mato Grosso, all from the Brazilian Amazonia. The new genus seems to be closely related to Caayguara Rheims, 2010, Meri Rheims & Jäger, 2022, Nungara Pinto & Rheims, 2016, and Sadala Simon, 1880. All species are described and illustrated, and a distribution map is provided.
References
Agnarsson I. & Rayor L.S. 2013. A molecular phylogeny of the Australian huntsman spiders (Sparassidae, Deleninae): implications for taxonomy and social behaviour. Molecular Phylogenetics and Evolution 69: 895–905. https://doi.org/10.1016/j.ympev.2013.06.015
Álvarez-Padilla F. & Hormiga G. 2007. A protocol for digesting internal soft tissues and mounting spiders for scanning electron microscopy. Journal of Arachnology 35: 538–542. https://doi.org/10.1636/Sh06-55.1
Casas C.M. & Rheims C.A. 2023. Nativus gen. nov., a new huntsman spider genus from South America (Araneae: Sparassidae: Heteropodinae). Zootaxa 5360 (1): 1–43. https://doi.org/10.11646/zootaxa.5360.1.1
Fernández R., Kallal R.J., Dimitrov D., Ballesteros J.A., Arnedo M.A., Giribet G. & Hormiga G. 2018. Phylogenomics, diversification dynamics, and comparative transcriptomics across the spider tree of life. Current Biology 28, 1489–1497. https://doi.org/10.1016/j.cub.2018.06.018
Gorneau J.A., Rheims C.A., Moreau C.S. & Rayor L. 2022. Huntsman spider phylogeny informs evolutionof life history, egg sacs, and morphology. Molecular Phylogenetics and Evolution 174: e107530. https://doi.org/10.1016/j.ympev.2022.107530
Jäger P. 1998. First results of a taxonomic revision of the SE Asian Sparassidae (Araneae). In: Selden P.A. (ed.) Proceedings of the 17th European Colloquium of Arachnology: 53–59. British Arachnological Society, Edinburgh.
Jäger P. 2020. The spider genus Olios Walckenaer, 1837 (Araneae: Sparassidae) – Part 1: species groups, diagnoses, identification keys, distribution maps and revision of the argelasius-, coenobitus- and auricomis-groups. Zootaxa 4866 (1): 1–119. https://doi.org/10.11646/zootaxa.4866.1.1
Jäger P. & Rheims C.A. 2008. On the genera Origes Simon 1897, Prusias O. Pickard-Cambridge 1892, Tibellomma Simon 1903 and Paenula Simon 1897 from South and Central America. Senckenbergiana Biologica 88: 29–39.
Kallal R.J., Kulkarni S.S., Dimitrov D., Benavides L.R., Arnedo M.A., Giribet G. & Hormiga G. 2021. Converging on the orb: Denser taxon sampling elucidates spider phylogeny and new analytical methods support repeated evolution of the orb web. Cladistics 37: 298–316. https://doi.org/10.1111/cla.12439
Kulkarni S., Kallal R.J., Wood H., Dimitrov D., Giribet G. & Hormiga G. 2021. Interrogating genomic-scale data to resolve recalcitrant nodes in the spider tree of life. Molecular Biology and Evolution 38: 891–903. https://doi.org/10.1093/molbev/msaa251
Kulkarni S., Wood H.M. & Hormiga G. 2023. Advances in the reconstruction of the spider tree of life: A roadmap for spider systematics and comparative studies. Cladistics 39: 479–532. https://doi.org/10.1111/cla.12557
Levi H.W. 1965. Techniques for the study of spider genitalia. Psyche 72: 152–158. https://doi.org/10.1155/1965/94978
Moradmand M., Schönhofer A.L. & Jäger P. 2014. Molecular phylogeny of the spider family Sparassidae with focus on the genus Eusparassus and notes on the RTA-clade and ‘Laterigradae’. Molecular Phylogenetics and Evolution 74: 48–65. https://doi.org/10.1016/j.ympev.2014.01.021
Petrunkevitch A. 1925. Arachnida from Panama. Transactions of the Connecticut Academy of Arts and Sciences 27: 51–248.
Pinto E.C. & Rheims C.A. 2016. A new genus of Neotropical spiders of the family Sparassidae (Arachnida: Araneae). Zoologia 33 (6): e20160160. https://doi.org/10.1590/s1984-4689zool-20160160
Ramírez M.J. 2014. The morphology and phylogeny of dionychan spiders (Araneae: Araneomorphae). Bulletin of the American Museum of Natural History 390: 1−374. https://doi.org/10.1206/821.1
Rheims C.A. 2010. Caayguara, a new genus of huntsman spiders from the Brazilian Atlantic forest (Araneae: Sparassidae). Zootaxa 2630: 1–29. https://doi.org/10.11646/zootaxa.2630.1.1
Rheims C.A. 2015. Curicaberis, a new genus of Sparassidae from North and Central America (Araneae, Sparassidae, Sparassinae). Zootaxa 4012 (3): 401–446. https://doi.org/10.11646/zootaxa.4012.3.1
Rheims C.A. 2019. On the huntsman spider genus Vindullus Simon, 1880 (Araneae: Sparassidae). Zootaxa 4544 (4): 572–580. https://doi.org/10.11646/zootaxa.4544.4.7
Rheims C.A. 2021. The Neotropical genera Guadana Rheims, 2010 and Sparianthina Banks, 1929 (Araneae: Sparassidae: Heteropodinae). Zootaxa 5061 (3): 401–431. https://doi.org/10.11646/zootaxa.5061.3.1
Rheims C.A. & Alayón G. 2016. Neostasina gen. nov., a new genus of huntsman spiders from the Neotropical region (Araneae, Sparassidae, Sparianthinae). Zootaxa 4079 (3): 301–344. https://doi.org/10.11646/zootaxa.4079.3.1
Rheims C.A. & Jäger P. 2022. Revalidation of the genus Sadala Simon, 1880 with the description of a new genus of Neotropical huntsman spiders (Araneae, Sparassidae). Zootaxa 5135 (1): 1–80. https://doi.org/10.11646/zootaxa.5135.1.1
Shorthouse D.P. 2010. SimpleMappr, an online tool to produce publication-quality point maps. Available from: http://www.simplemappr.net [accessed 29 Jul. 2022].
Tong Y., Binford G., Rheims C.A., Kuntner M., Liu J. & Agnarsson I. 2019. Huntsmen of the Caribbean: Multiple tests of the GAARlandia hypothesis. Molecular Phylogenetics and Evolution 130: 259−268. https://doi.org/10.1016/j.ympev.2018.09.017
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 L.R., Benjamin S.P., Bond J.E., Grismado C.J., Hasan E., Hedin M., … & Zhang J. 2017. The spider tree of life: phylogeny of Araneae based on target-gene analyses from an extensive taxon sampling. Cladistics 33: 574–616. https://doi.org/10.1111/cla.12182
World Spider Catalog 2025. World Spider Catalog. Version 21.0. Natural History Museum Bern. Available from: http://wsc.nmbe.ch [accessed 7 Jan. 2025]. https://doi.org/10.24436/2
Copyright (c) 2025 Cristina A. Rheims
This work is licensed under a Creative Commons Attribution 4.0 International License.
Creative Commons Copyright Notices
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are NOT PERMITTED to post their submitted work online (e.g., in institutional repositories or on personal websites) prior to publication, as it may lead to nomenclatural issues.
