Castoraeschna corbeti sp. nov. from Floresta Nacional de Carajés, Paré state, Brazil (Odonata: Aeshnidae)

Alcimar L. Carvalhoa, Ângelo P. Pintob, Nelson Ferreira-Jrc

  1. Departamento de Entomologia, Museu Nacional , Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
  2. Ciências Biológicas (Zoologia) IB – USP, Museu de Zoologia , Universi dade de São Paulo, São Paulo, Brazil
  3. Departamento de Zoologia , Instituto de Biologia, Cidade Universitéria, Rio de Janeiro, Brazil

International Journal of Odonatology, Volume 12, Issue 2, Pages 337-346, 2009
https://doi.org/10.1080/13887890.2009.9748350
Published: 1 October 2009 (Received: 27 February 2009, Accepted: 15 April 2009)

Abstract

Castoraeschna corbeti sp. nov. is described and diagnosed based on four males (holo- type: Brazil, Para State, Floresta Nacional de Carajás [6°06′13.9″S, 50°08′13.1″W, ca 600 m a.s.l.], 28 ix 2007 to be deposited in Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro). This species is similar to C. longfieldae and C. coronata but can be distinguished mainly by the absence of medio-dorsal spots on S8; postero-dorsal spots on S8-9 very narrow; cerci external margin almost straight in lateral view, without a distinct angulation between stem and base of lamina; cerci apex blunt. The probable ultimate stadium larva is described based on two individuals, male and female, collected at the type locality. Adults were observed flying along margins of a small shaded second-order stream where the larvae were taken. The surrounding forest is under impact of iron ore extraction and will probably disappear in the next years.

Keywords: Odonata, dragonfly, Aeshnidae, Castoraeschna, new species, larva, taxonomy, South America, Amazon Forest

Issue section: Article