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An unusual new species of Trechona (Araneae: Mygalomorphae: Dipluridae), from quartzitic caves of the Diamantina Plateau, Minas Gerais, Brazil, with a key to the known species

descriptionPublicationkeyboard_double_arrow_right Article 08 Jul 2016 Brazil Publisher:Informa UK LimitedJournal:Journal of Natural History, volume 50, pages 2,487-2,497 (issn: 0022-2933, eissn: 1464-5262,

Authors: Guadanucci, Jose Paulo L.; Fonseca-Ferreira, Rafael; Cerqueira Baptista, Renner Luiz; Pedroso, Denis Rafael;

doi: 10.1080/00222933.2016.1193652

handle: 11449/161857

An unusual new species of Trechona (Araneae: Mygalomorphae: Dipluridae), from quartzitic caves of the Diamantina Plateau, Minas Gerais, Brazil, with a key to the known species

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Abstract

ABSTRACTTrechona diamantina sp. nov. is described from quartzite caves in Diamantina, central Minas Gerais State, Brazil. This represents the largest cavernicolous mygalomorph population ever recorded. The new species is the first Trechona recorded from a xeric habitat, namely the Rocky Fields on the Diamantina Plateau. T. diamantina sp. nov. is closely related to T. uniformis, both species possessing elongated male and female copulatory organs and both constructing distinct funnel-webs and sheet-webs in quartzite formations. T. diamantina sp. nov. is distinct in possessing less elongated embolus and receptacula seminis. A key for all valid species of the genus is given.http://zoobank.org/urn:lsid:zoobank.org:pub:EB9E66B3-4701-470C-A80D-873E25F52042

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Brazil

Related Organizations

Sao Paulo State University
Brazil
Universidade de São Paulo
Brazil
Universidade Estadual Paulista "Júlio de Mesquita Filho"
Brazil
Federal University of Rio de Janeiro
Brazil
Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto
Brazil

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Keywords

new species, Arthropoda, 590, Biodiversity, taxonomy, Dipluridae, Arachnida, Animalia, Araneae, Spider, hypogean environment, troglophile, Taxonomy

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