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Type: Article
Published: 2016-04-12
Page range: 117–129
Abstract views: 55
PDF downloaded: 1

Taxonomic notes on the genus Auranus (Opiliones, Laniatores, Stygnidae), with description of two new species

Instituto Nacional de Pesquisas da Amazônia, INPA, Coordenação de Pesquisas em Biodiversidade. Avenida André Araújo, 2936, Aleixo, CEP 69011−970, Cx. Postal 478, Manaus, AM, Brazil
Instituto Nacional de Pesquisas da Amazônia, INPA, Coordenação de Pesquisas em Biodiversidade. Avenida André Araújo, 2936, Aleixo, CEP 69011−970, Cx. Postal 478, Manaus, AM, Brazil
Instituto Nacional de Pesquisas da Amazônia, INPA, Coordenação de Pesquisas em Biodiversidade. Avenida André Araújo, 2936, Aleixo, CEP 69011−970, Cx. Postal 478, Manaus, AM, Brazil Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA
Opiliones Amazon basin Gonyleptoidea harvestmen Neotropics taxonomy

Abstract

Among the Amazonian families of harvestmen the members of Stygnidae are better known due to the recent revision of the family and efforts of specialists describing new taxa in the last few years. Species of Amazonian genus Auranus Mello-Leitão, 1941, have been collected in several inventories that were carried out in different locations of the Amazon basin. In this paper we provide a new diagnosis for Auranus, and the description of two new species: Auranus leonidas sp. nov. and Auranus xerxes sp. nov. from the Brazilian states of Roraima and Amazonas, respectively. We also offer complementary genital descriptions of Auranus hehu Pinto-da-Rocha & Tourinho 2012, Auranus parvus Mello-Leitão, 1941, and Auranus tepui Pinto-da-Rocha & Tourinho 2012. Five species are recognized in Auranus, including the two new species described in this paper. The lamina parva modified into a calyx is proposed as putative synapomorphy for the genus Auranus. Therefore, A. hoeferscovitorum, which does not possess this character, is removed from Auranus. Instead we propose for it the new combination Verrucastygnus hoeferscovitorum comb. nov. We also provide a key to the males of Auranus, and a map with the distribution for all species examined in this work.

 

References

  1. Acosta, L.E., Pérez-González, A. & Tourinho, A.L (2007) Methods for taxonomic study. In: Pinto-da-Rocha, R., Machado, G. & Giribet, G. (Eds.), Harvestmen: The Biology of Opiliones. Harvard University Press, Cambridge, Massachusetts. pp. 494–510.
    http://dx.doi.org/10.5860/CHOICE.44-6238

    Adis, J. (1992) Überlebensstrategien terrestricher invertebraten in Überschwemmungsgswäldern Zentralamazoniens. Verhandlungen des naturwissenschaftlichen Vereins Hamburg, 33, 21–114.

    Bragagnolo, C. (2013) Two new species of Protimesius from northern Brazil (Opiliones: Laniatores: Stygnidae). Zootaxa, 3620 (2), 283–292.
    http://dx.doi.org/10.11646/zootaxa.3620.2.6

    Friebe, B. & Adis, J. (1983) Entwicklungzyklen von Opiliones (Arachnida) im Sachwarzwasser-Uberschwemmungswald (Igapó) des Rio Tarumã Mirim (Zentralamazonien, Bresilien). Amazoniana, 8 (1), 101–110.

    Kury, A.B. (2003) Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Ibérica de Aracnología, Volumen especial monográfico, 1, 1–337.

    Kury, A.B. & Villarreal, O. (2015) The prickly blade mapped: establishing homologies and chaetotaxy for macrosetae of penis ventral plate in Gonyleptoidea (Arachnida, Opiliones, Laniatores). Zoological Journal of the Linnean Society, 174, 1–46.
    http://dx.doi.org/10.1111/zoj.12225

    Mello-Leitão, C.F. (1941) Opiliões coligidos por Antenor Leitão de Carvalho no Tapirapés. Revista Brasileira de Biologia, 1, 435–442.

    Pinto-da-Rocha, R. (1995) Redescription of Stenostygnus pusio Simon and synonymy of Caribbiantinae with Stenostygninae (Opiliones, Laniatores, Biantidae). The Journal of Arachnology, 23, 194–198.

    Pinto-da-Rocha, R. (1997) Systematic review of the Neotropical family Stygnidae (Opiliones, Laniatores, Gonyleptoidea). Arquivos de Zoologia, 33, 163–342.
    http://dx.doi.org/10.11606/issn.2176-7793.v33i4p163-342

    Pinto-da-Rocha, R. & Tourinho, A.L. (2012) Two new genera, ten new species and new records of Amazonian Stygnidae Simon, 1879 (Opiliones: Laniatores). Zootaxa, 3340, 1–28.

    Pinto-da-Rocha, R. & Villarreal Manzanilla, O. (2009) Cladistic analysis of the Stygninae and description of a new species of Protimesius Roewer, 1913 (Opiliones: Stygnidae). Zootaxa, 2176, 48–56.

    Quantum GIS Development Team (2015) Quantum GIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: http://qgis.osgeo.org (Accessed 7 Apr. 2016)

    Roewer, C.F. (1913) Die Familie der Gonyleptiden der Opiliones Laniatores. Archiv für Naturgeschichte, 79A (5), 1–256.

    Simon, E. (1879) Essai d´une classification des Opiliones Mecotheti. Annales de la Société Entomologique de Belgique, 22, 183–241.

    Soares, B.A.M. (1945) Opiliões da coleção do Museu Nacional do Rio de Janeiro. Arquivos de Zoologia, 4 (9), 341–394.