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

PLoS One. 2022 Mar 3;17(3):e0264264. doi: 10.1371/journal.pone.0264264. eCollection 2022.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animal Distribution
  • Animals
  • Australia
  • Insecta*
  • Neoptera*
  • Phylogeny

Grants and funding

TD – São Paulo Research Foundation (FAPESP: 2015/11580-3 and 2016/22213-4) (http://www.fapesp.br/en/); and Itaipu Technological Park Foundation - Brazil (FPTI-BR: 902940/2021) (https://www.pti.org.br). ARC – National Council for Scientific and Technological Development (CNPq: PQ 307794/2015-6) (http://www.cnpq.br). PCB – São Paulo Research Foundation (FAPESP: 2019/22833-0 and BIOTA 2021/05986-8); and National Council for Scientific and Technological Development (CNPq: PROTAX 441119/2020-4 and PQ 303260/2018-1). The Coordination for the Improvement of Higher Education Personnel (CAPES “Finance Code 001”) financed the English revision (https://www.capes.gov.br). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.