Sistemática de macronematinae (trichoptera: hydropsychidae) com ênfase na taxonomia dos gêneros neotropicais
Macronematinae is the second largest subfamily of Hydropsychidae with about 400 species being the Neotropical region with the largest number of recorded species (214 species). Currently with 16 genera it is divided in two tribes: Macronematini with developed palpi and Polymorphanisini with atrophied...
| Autor principal: | Silva, Patrik Barcelos e |
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| Grau: | Tese |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/12367 http://lattes.cnpq.br/5106663399525677 |
| Resumo: |
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Macronematinae is the second largest subfamily of Hydropsychidae with about 400 species being the Neotropical region with the largest number of recorded species (214 species). Currently with 16 genera it is divided in two tribes: Macronematini with developed palpi and Polymorphanisini with atrophied palpi. Even present in some studies investigating the phylogenetic relationships among subfamilies of Hydropsychidae, Macronematinae did not have their monophyly tested including all genera of the group in such a way that all their diversity was represented, and until now there is no proposal that tries to understand the relations among the genera of the subfamily. The aim of this study were: study the taxonomy of Neotropical genera, test the monophyly of Macronematinae, and propose a hypothesis of relationship among the subfamily genera. In the present work two new species of Leptonema and immature stages of Centromacronema, Leptonema and Synoestropsis collected in different Brazilian states were described. Phylogenetic analyzes were performed based on morphological data extracted from male adults and larvae as well as molecular data from the COI and 28S fragments. In all cases, five partitions of the independent and combined data were analyzed
under the parsimony using the TNT program and Bayesian inference in the Mr. Bayes program methods. The results recovered the monophyly of Macronematinae but did not recover the monophyly of Macronematini and Polymorphanisini. Polymorphanisus was not recovered as monophyletic we suggested the description of a new genus to allocate the species of P. (ocularis): Magnocularis gen. nov., once that they were recovered in a separate clade of the species of P. (nigricornis). In order to adapt the current classification to the obtained results, the following changes were proposed: creation of Leptonemini trib. nov., including Leptonema and Neoleptonema stat. rev. and Macrostemini. trib. nov. including Aethaloptera (transferred from Polymorphanisini), Amphipsyche, Macrostemum [divided in two subgenera: M. (Macrostemum) e M.(Panmacrostemum) subgen.nov.]and Protomacronema. Macronematinae now includes only Baliomorpha, Centromacronema and Macronema, and Polymorphanisini includes Magnocularis gen. nov., Oestropsyche, Polymorphanisus and Synoestropsis. The position of Leptopsyche, Plectromacronema, Pseudoleptonema and Trichomacronema stat. rev. has been the subject of controversy and the addition new information on these genera is necessary to better establish their positions. A new classification is presented with all proposed changes and a key identification of the Macronematinae genera of the world is proposed for adults and larvae. |