It was the secretary of the National Butterfly Club, Divakar Thombre, who first conceived the idea a few years ago and created the National Butterfly Campaign Consortium (NBCC) which comprised entomologists, naturalists, citizen scientists, journalists and hobbyists, with representatives from states across the country. They outlined several criteria for choosing the species for the first list. These included beauty, ecological significance and abundance. The butterfly could not be too commonplace, it could not have multiple forms, or be harmful to crops, and it couldn&rsquot be a species that was already designated as a state butterfly.