Two new species and a new distributional record of Alterosa (Trichoptera: Philopotamidae) from southeastern Brazil

  • Christina Novais Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil. http://orcid.org/0000-0003-0216-8766
  • Leandro Lourenço Dumas Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil. http://orcid.org/0000-0002-6590-3388
  • Jorge Luiz Nessimian Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil. http://orcid.org/0000-0001-8795-2538
Keywords: Atlantic Forest, Distributional notes, Finger-net caddisflies, Neotropics, Taxonomy

Abstract

The genus Alterosa Blahnik (2005), with 39 extant species, is endemic to Atlantic Forest areas of southern and southeastern Brazil. Herein, we describe and illustrate two new species from Rio de Janeiro state, southeastern Brazil: Alterosa cornuta sp. nov., easily diagnosed by the horn-like intermediate appendages crossing each other, and A. araras sp. nov., recognized mainly by the extremely developed basodorsal protuberance on tergum X and by the rod-like, mesally curved preanal appendages, with at least 2 stout spine-like setae positioned at mid length and with the apex cupped. Additionally, a new distributional record for Espírito Santo state, southeastern Brazil, is provided for Alterosa falcata Blahnik (2005).

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Author Biographies

Christina Novais, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil.

Avenida Carlos Chagas Filho, 373, Bloco A, Sala 107, Cidade Universitária, CEP 21941-971, Rio de Janeiro, RJ, Brasil.

Leandro Lourenço Dumas, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil.

Avenida Carlos Chagas Filho, 373, Bloco A, Sala 107, Cidade Universitária, CEP 21941-971, Rio de Janeiro, RJ, Brasil.

Jorge Luiz Nessimian, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia (IB), Departamento de Zoologia, Laboratório de Entomologia - Rio de Janeiro, RJ, Brasil.

Avenida Carlos Chagas Filho, 373, Bloco A, Sala 107, Cidade Universitária, CEP 21941-971, Rio de Janeiro, RJ, Brasil.

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Published
2019-10-17
How to Cite
Novais, C., Dumas, L., & Nessimian, J. L. (2019). Two new species and a new distributional record of Alterosa (Trichoptera: Philopotamidae) from southeastern Brazil. Papéis Avulsos De Zoologia, 59, e20195952. https://doi.org/10.11606/1807-0205/2019.59.52
Section
Original Article