![]() When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, and after its wings have expanded and dried, it flies off. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. Butterfly fossils date to the Paleocene, about 56 million years ago.īutterflies have a four-stage life cycle, as like most insects they undergo complete metamorphosis. ![]() The group comprises the superfamilies Hedyloidea (moth-butterflies in the Americas) and Papilionoidea. ![]() Butterflies ( Rhopalocera) are insects that have large, often brightly coloured wings, and a conspicuous, fluttering flight. ![]()
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