The Blue Mormon ( Papilio polymnestor) is the second largest butterfly found in India. It rare butterfly is a habitant of South India and Sri Lanka.
Due to its remarkable size (120-150mm) and sparkling blue and white colours, this butterfly is heavily poached and has become rare. The captive breeding program at Banergatta National Park Bangalore made it possible to spot a few again in the vicinity of the city.
It is found in heavy rainfall areas such as evergreen forests. The male is fond of sun and avoids shade. It is mainly attracted by citrus plants we have seen it collecting nectur in Ixora plants.
The female lays her eggs on the upper surface of leaves of Rutaceae plant. The newly laid egg is spherical and light green but darkens over time to orange-yellow.