The Andean butterfly Hypomenitis enigma (IMAGE)
Caption
The Andean butterfly Hypomenitis enigma has a wing pattern combining coloured elements and transparent areas. This pattern is a warning signal indicating to predators that the butterfly is distasteful. In this species, transparency arises from the reduction of scales, and is enhanced by the presence of tiny structures called nanopillars on the wing.
Credit
Marianne Elias (CC BY-NC 4.0)
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License
CC BY-NC