Tirumala limniace, the blue tiger, is a butterfly found in South Asia, and Southeast Asia that belongs to the crows and tigers, that is, the danaid group of the brush-footed butterfly family. This butterfly shows gregarious migratory behaviour in southern India. In some places, it may be found in congregations with Danaus genutia, Tirumala septentrionis, Euploea sylvester, Euploea core, Parantica aglea, and at high elevations, with Parantica nilgiriensis, on Crotalaria.

Source: Wikipedia