Scientific Name : Papilio castor (Westwood)
Family : PAPILIONIDAE
Wingspan : 100 - 130 mm
Colour : Being tailless, this dark butterfly is deceptively similar to the Crows and Mimes.
Habit : Seen in summer and in July and August upto 1200m in the hills. Prefers evergreen forests of heavy rainfall areas. Fast flier.
Larval Host Plants : Gycosmis arborea, Toddalia asiatica, Glycosmis pentaphylla
Location : North Bengal