Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2019-03-14
Page range: 25–46
Abstract views: 67
PDF downloaded: 4

Revision of the crab-spiders of the genus Runcinioides Mello-Leitão, 1929 (Araneae, Thomisidae)

Pós-graduação em Zoologia,Universidade Federal de Minas Gerais Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Avenida Presidente Antônio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil.
Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Avenida Presidente Antônio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil.
Misumenini Neotropical region spiders taxonomy Arachnida Araneae


The genus Runcinioides is revised, including the redescription of R. argenteus Mello-Leitão, 1929 and R. litteratus (Piza, 1933). The male of R. litteratus is described and illustrated for the first time and Misumenops paranensis (Mello-Leitão, 1932) is here considered a junior synonym of R. argenteus. The known geographic distribution of both species is expanded with the inclusion of new occurrence data. Runcinioides pustulatus Mello-Leitão, 1929 and Runcinioides souzai Soares, 1942 are not related to the other species of the genus, and provisionally considered as incertae sedis.


  1. Álvarez-Padilla, F. & Hormiga, G. (2008) A protocol for digesting internal soft tissues and mounting spiders for scanning electron microscopy. Journal of Arachnology, 35, 538–542.

    Benjamin, S.P. (2011) Phylogenetics and comparative morphology of crab spiders (Araneae: Dionycha, Thomisidae). Zootaxa, 3080, 1–108.

    Caporiacco, L. (1954) Araignées de la Guyane Française du Muséum d'Histoire Naturelle de Paris. Commentationes Pontificia Academia Scientiarum, 16, 45–193.

    Edwards, G.B. (2017) Revision of Misumessus (Thomisidae: Thomisinae: Misumenini), with observations on crab spider terminology. Journal of Arachnology, 45, 296–323.

    Lehtinen, P.T. (2004) Taxonomic notes on the Misumenini (Araneae: Thomisidae: Thomisinae), primarily from the Palaearctic and Oriental regions. In: Logunov, D.V. & Penney, D. (Eds.), European Arachnology 2003. Special Issue 1. Proceedings of the 21st European Colloquium of Arachnology, St.-Petersburg, 4-9 August 2003. KMK Scientific Press, Moscow, pp. 147–184.

    Lehtinen, P.T. & Marusik, Y.M. (2008) A redefinition of Misumenops F. O. Pickard-Cambridge, 1900 (Araneae, Thomisidae) and review of the New World species. Bulletin of the British Arachnological Society, 14, 173–198.

    Mello-Leitão, C.F. (1929) Aphantochilidas e Thomisidas do Brasil. Arquivos do Museu Nacional do Rio de Janeiro, 31, 9–359.

    Mello-Leitão, C.F. (1932) Pequenas notas arachnologicas. Boletim do Museu Nacional do Rio de Janeiro, 8, 67–75.

    Mello-Leitão, C.F. (1941) Aranhas do Paraná. Arquivos do Instituto Biológico, São Paolo, 11, 235–257.

    Mello-Leitão, C.F. (1944) Arañas de la provincia de Buenos Aires. Revista del Museo de La Plata (N.S., Zool.), 3, 311–393.

    Mello-Leitão, C.F. (1947) Aranhas do Paraná e Santa Catarina, das coleções do Museu Paranaense. Arquivos do Museu Paranaense, 6, 231–304.

    Piza, S.T. (1933) Novos thomisidas do Brasil. Revista de Biologia e Hygiene, 4, 45–51.

    Piza, S.T. (1937) VII. Novos thomisidas do Brasil. Folia Clinica et Biologica, 9, 179–183.

    Ramírez, M.J. (2014) The morphology and phylogeny of dionychan spiders (Araneae: Araneomorphae). Bulletin of the American Museum of Natural History, 390, 1–374.

    Rinaldi, I.M.P. (1988) Misumenops Cambridge e Uraarachne Keyserling (Araneae, Thomisidae, Thomisinae): Sinonímias, novas combinações e redescrições. Revista Brasileira de Entomologia, 32, 19–30.

    Rocha-Filho, L.C. & Rinaldi, I.M.P. (2011) Crab spiders (Araneae: Thomisidae) in flowering plants in a Brazilian "Cerrado" ecosystem. Brazilian Journal of Biology, 71, 359–364.

    Roewer, C.F. (1955) Katalog der Araneae von 1758 bis 1940, bzw. 1954, 2. Band, Abt. a, Institut royal des Sciences naturelles de Belgique, Bruxelles, 923 pp.

    Romero, G.Q. & Vasconcellos-Neto, J. (2003) Natural history of Misumenops argenteus (Thomisidae): seasonality and diet on Trichogoniopsis adenantha (Asteraceae). Journal of Arachnology, 31, 297–304.

    Romero, G.Q. & Vasconcellos-Neto, J. (2004) Foraging by the flower-dwelling spider, Misumenops argenteus (Thomisidae), at high prey density sites. Journal of Natural History, 38, 1287–1296.

    Sierwald, P. (1989) Morphology and ontogeny of female copulatory organs in American Pisauridae, with special reference to homologous features (Arachnida: Araneae). Smithsonian Contributions to Zoology, 484, 1–24.

    Soares, B.M. (1942) Alguns tomisidas e um salticida novos do Brasil. Papéis Avulsos de Zoologia, 2, 255–265.

    Soares, B.A.M. (1944) Aracnideos de Monte Alegre. Papéis Avulsos do Departamento de Zoologia, 4, 151–168.

    Sundevall, C.J. (1833) Conspectus Arachnidum. Londini Gothorum, 39 pp.

    World Spider Catalog (2018) World Spider Catalog, version 19.5, Natural History Museum Bern. Available from: (accessed 31 July 2018)