Delias eucharis, the common Jezebel, is a medium-sized pierid butterfly found in many areas of south and southeast Asia, especially in the non-arid regions of India, Bangladesh, Sri Lanka, Indonesia, Myanmar and Thailand. The common Jezebel is one of the most common of the approximately 225 described species in the genus Delias.
The common Jezebel are nomadic in behaviour and are found in a variety of environment including, but not limited to, temperate hill forests, tropical rainforests, dry open woodlands, and beach hinterlands. They are generally found all over India, except in the desert tracts, and up to an altitude of 7,000 feet (2,100 m) in the hills. The butterfly may be found wherever there are trees, even in towns and cities, flying high among the trees and visiting flowers.
It is also commonly seen in gardens. The females can be seen flying amongst the trees in search of its food plants, while the males are more frequently observed visiting flowers for nectar. It rests with its wings closed exhibiting the brilliantly coloured underside.
The Jezebel often flies high up in the canopy and usually comes lower down only to feed on nectar in flowers. Due to this habit apparently, it has evolved a dull upperside and a brilliant underside so that birds below it recognise it immediately while in flight and at rest.