The Common Jezebel (Delias eucharis) is a medium sized pierid butterfly found in many areas of South and Southeast Asia, especially in the non-arid regions of India, Sri Lanka, Myanmar and Thailand. The Common Jezebel is one of the most common species in the genus Delias. The butterfly may be found wherever there are trees, even in towns and cities, flies high among the trees and comes lower down only to feed on nectar in flowers. It rests with its wings closed exhibiting the brilliantly coloured underside. Due to this habit apparently, it has evolved a dull upper-side and a brilliant underside so that birds below it recognise it immediately while in flight and at rest. The bright coloration is to indicate the fact that it is unpalatable due to toxins accumulated by the larvae from the host-plants.
Taken at Kadavoor, Kerala, India. Image File:Common Jezebel Delias eucharis by kadavoor 3.jpg by Jeevan Jose and released as public domain. Many thanks, Jeevan Jose!