I am interested in study the biodiversity of butterfly in South Gujarat region, India. Kindly provide me the literature related to butterfly diversity in India and world.
If you need a "Key," A classic work of Evans "Identification of Indian Butterflies" is the only publication which provides comprehensive keys, which of course is out of date. You need to find current and appropriate key for each group. If your purpose is "identification," an web site is available: http://www.ifoundbutterflies.org/home.