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

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...

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Detalhes bibliográficos
Autores: Novais, Christina, Dumas, Leandro Lourenço, Nessimian, Jorge Luiz
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Recursos:Universidade de São Paulo (USP)
Repositorio:Papéis Avulsos de Zoologia (Online)
Idioma:inglés
OAI Identifier:oai:revistas.usp.br:article/157192
Acesso em linha:https://www.revistas.usp.br/paz/article/view/157192
Access Level:acceso abierto
Palavra-chave:Atlantic Forest
Distributional notes
Finger-net caddisflies
Neotropics
Taxonomy
Descrição
Resumo: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).