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Scanning Electron Microscope Stories 4. The Beauty of Butterflies’ Wings

Publication at Faculty of Science, Faculty of Mathematics and Physics |
2011

Abstract

The tiny scales covering both the butter­flies’ wings and body are modified hairs providing various fundamental functions including insulation and thermoregulation and aiding gliding flight and colouration. Most scales are lamellar, while other forms may be hair-like or specialized as androconia exuding sexual pheromone.

The lumen or surface of the scales has a complex structure. It induces colour either due to the pigmentary colours contained within or due to optical phenomena based on its three-di­mensional structure.

The various scales display a large diversity of vivid or indistinct patterns helping the butterfly to protect it­self by camouflage and mimicry, as well as helping it to attract mates.