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A brachypterous butterfly?

Angel L Viloria1, Tomasz W Pyrcz, Janusz Wojtusiak

  • 1Department of Entomology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK. aviloria@oikos.ivic.ve

Proceedings. Biological Sciences
|September 4, 2003
PubMed
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New butterfly species, Redonda bordoni, endemic to Venezuelan Andes, exhibits brachyptery. This wing reduction and inability for sustained flight in females is a novel finding within the Rhopalocera (butterflies).

Area of Science:

  • Entomology
  • Zoology
  • Biodiversity research

Background:

  • Butterflies of the genus Redonda (Lepidoptera: Nymphalidae: Satyrinae) are endemic to the Venezuelan Andes.
  • This genus includes five allopatric taxa, with females exhibiting varying degrees of wing reduction and flight capability.

Purpose of the Study:

  • To describe a new species, Redonda bordoni Viloria & Pyrcz sp. nov.
  • To investigate the phenomenon of wing reduction and flightlessness in female butterflies within this genus.

Main Methods:

  • Taxonomic description of a new species.
  • Morphological analysis of wing structures.
  • Comparative study of flight capabilities in related taxa.

Main Results:

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  • The new species, Redonda bordoni, is described from the Venezuelan Andes.
  • Females of Redonda bordoni exhibit brachyptery, rendering them incapable of sustained flight.
  • This represents a previously undocumented phenomenon among Rhopalocera.

Conclusions:

  • The discovery of flightless female butterflies in the genus Redonda highlights unique evolutionary adaptations.
  • Redonda bordoni expands our understanding of sexual dimorphism and ecological specialization in butterflies.
  • Further research is warranted on the evolutionary pressures driving brachyptery in this genus.