Female Cairns Birdwing – Ornithoptera euphorion
The Cairns Birdwing is Australia’s largest endemic butterfly species.
Females have a wingspan reaching of up to 16 cm, males are usually a few centimeters smaller. A closely allied species, the New Guinea or Priam’s Birdwing (Ornithoptera priamus) reaches 19 cm and is the largest butterfly species found in Australia, but it is not endemic.
Males have a predominately black upper wing with emerald green flashes, however the female lacks the green coloring, having a plain black upper wing with white patches. The female is the larger of the two sexes.
Featured in Art and Collectable Sales on February 12/2011