Scientific name: papilio Palinurus

Papilio palinurus has a wingspan reaching about 8–10 centimetres. The dorsal sides of the wings are covered by a powder of green scales and the background vary from dark greenish to black, with broad bright emerald green metallic bands. The undersides are black with orange, white and blue spots along the edges of hindwings, that show extended tails at the end.

The flight of these butterflies is swift and quite fast. Caterpillars feed on plants of genus Euodia belonging to the Rutaceae, commonly known as the rue or citrus family.

The iridescent green sheen of the bands of this butterfly is not produced by pigments, but is structural coloration produced by the microstructure of the wing scales. They refract the light and give rise to blue and yellow visible reflections, producing the perception of green color when additively mixed

[source: wikipedia]

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