Systematic revision and phylogeny of Paragripopteryx Enderlein, 1909 (Plecoptera: Gripopterygidae)

Among the Neotropical gripopterygids, the genus Paragripopteryx occurs along the Brazilian Atlantic coast to Uruguay. Since its first recognition by Enderlein in 1909, the genus underwent a confusing taxonomic history with some combinations. In this study, we aim to revise Paragripopteryx and presen...

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Bibliographic Details
Published in:PloS one 2022-03, Vol.17 (3), p.e0264264-e0264264
Main Authors: Duarte, Tácio, Calor, Adolfo Ricardo, Bispo, Pitágoras da Conceição
Format: Article
Language:English
Subjects:
Analysis
Animal Distribution
Animals
Australia
Biodiversity
Biology and Life Sciences
Cladistic analysis
Computer and Information Sciences
Environmental aspects
Genera
Genetic aspects
Gripopterygidae
Identification and classification
Insecta
Medicine and Health Sciences
Methods
Morphology
Museums
Neoptera
New records
New species
Observations
People and places
Phylogenetics
Phylogeny
Stone-flies
Stream ecology
Taxonomic revision
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Summary:Among the Neotropical gripopterygids, the genus Paragripopteryx occurs along the Brazilian Atlantic coast to Uruguay. Since its first recognition by Enderlein in 1909, the genus underwent a confusing taxonomic history with some combinations. In this study, we aim to revise Paragripopteryx and present the first morphology-based phylogeny for the genus. The analysis comprised 38 morphological characters and their respective states in 30 terminal taxa, including 13 Paragripopteryx species, two new species identified as belonging to Paragripopteryx, and 15 outgroup species, among which we can highlight 12 different South American genera and one Australian genus of Gripopterygidae. The cladistic analysis yielded a parsimonious tree for k = 3 (137 steps, consistency index = 0.445, and retention index = 0.591) where most Paragripopteryx are nested, except for Uruguayan Paragripopteryx munoai. We can then infer that in its current circumscription Paragripopteryx is polyphyletic. The following two species are described: Paragripopteryx dasalmas sp. nov. and Paragripopteryx ogum sp. nov. Paragripopteryx baratinii is designated as a nomen dubium. Additionally, we provide a key for species identification, updated geographical records, and illustrations for all species. As a corollary, our study gathers relevant morphological information that can help to better understand this genus and create foundations for the next steps.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0264264