(Meandrusa sciron)
Meandrusa sciron, the brown gorgon, is a species of swallowtail found in parts of South Asia and Southeast Asia. It belongs to the hooked swallowtails genus, Meandrusa, of the family Papilionidae. The butterfly is found in India from Sikkim to Assam and north Burma and is not considered to be threatened. Though not uncommon, it is protected under Indian law under the name gyas.