Fluminagrion gen. nov. for Acanthagrion taxaense Santos, 1965, from Brazil (Odonata: Coenagrionidae)

Danielle Anjos-Santosa , Federico Lozanob, Janira Martins Costac

  1. Laboratorio de Investigaciones en Sistemática y Ecología Animal (LIESA), Esquel, Argentina
  2. Centro Regional de Estudios Genómicos (CREG), Florencio Varela, Argentina
  3. Museu Nacional, Universidade Federal do Rio de Janeiro, Departamento de Entomologia, Setor de Insetos Aquáticos, Rio de Janeiro, Brazil

International Journal of Odonatology, Volume 16, Issue 2, Pages 145-155, 2013
https://doi.org/10.1080/13887890.2013.782529
Published: 1 June 213 (Received: 6 December 2012, Accepted: 6 February 2013)

Abstract

A new genus of Coenagrionidae, Fluminagrion, from Rio de Janeiro, Brazil is described, diagnosed, and illustrated, based on examination of the type series and additional specimens of Acanthagrion taxaense Santos, 1965, deposited in the collection of MNRJ/Brazil. This genus is characterized by: posterior lobe of prothorax trilobate, with medial lobe rounded and projected in both sexes; segment 3 of genital ligula C-shaped in lateral view, bifid in ectal view, ending in lobes directed laterally with apexes pyramidal in cross-section; male cercus entire and decumbent from proximal fourth, with brush-like setae at about half its length; female lacking mesepisternal fossa, S8 with vulvar spine.

Keywords: Odonata, Zygoptera, Coenagrionidae, damselfly, Fluminagrion gen. nov., Brazil

Issue section: Article