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Type: Article
Published: 2020-06-29
Page range: 483–494
Abstract views: 58
PDF downloaded: 3

Endemism within endemism: a new species of Austroleptis Hardy, 1920 (Diptera: Austroleptidae) from the Brazilian Atlantic Forest highlands

Museu Paraense Emílio Goeldi, MPEG, Coordenação de Zoologia, Av. Perimetral, 1901, Terra Firme, 66077-830, Belém, PA, Brazil. Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP, Departamento de Biologia, Laboratório de Evolução e Morfologia de Diptera, Av. Bandeirantes 3900, Monte Alegre, 14040-901, Ribeirão Preto, SP, Brazil.
Universidade Federal do ABC, Centro de Ciências Naturais e Humanas, Rua Santa Adélia, 166, Bairro Bangu, 09210-170, Santo André, SP, Brazil.
Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP, Departamento de Biologia, Laboratório de Evolução e Morfologia de Diptera, Av. Bandeirantes 3900, Monte Alegre, 14040-901, Ribeirão Preto, SP, Brazil.
Diptera Brachycera biodiversity endemic southern Brazil Tabanomorpha

Abstract

A third species of the southern temperate tabanomorph genus Austroleptis Hardy, 1920 (Diptera: Austroleptidae)—A. camposgerais sp. nov.—from the Brazilian Atlantic Forest is described and illustrated. A key for the species of the genus in Brazil is provided. Shared derived features indicate a sister group relationship between the new species and A. longirostris Fachin et al., 2018. Whatever the relationships among the species of this clade, however, there is a process of endemism within endemism in the Atlantic Forest: species at higher altitudes undergo vicariance process that do not affect lowland species distributed around the mountain chains. The low number of specimens known from highland species and the very restricted geographic distribution of each species strongly indicate the urgency to protect the natural environments at higher altitudes in Brazil.

 

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