The long branded blue crow (Euploea algea), is a butterfly found in India and Southeast Asia that belongs to the crows and tigers, that is, the Danaid group of the brush-footed butterflies family.
This large, light-brown butterfly, with a wingspan of 60 to 70 mm depending on the subspecies, has a metallic-blue to totally metallic-blue underside with small spots on the forewings, depending on the subspecies.
The underside is light brown with small white dots, varying in quantity according to subspecies.