Known as Papilio palinurus, Emerald Green Butterfly lives in South-East Asia. It is the most beautiful of the few green butterflies. The amazing butterfly has a forked tail, and is also called the Emerald peacock swallowtail or peacock. There are several varieties in Southeast Asia (the Philippines, Burma, Malaysia, Singapore, Thailand). Male butterflies have brighter coloration than female species. The wingspan is 8-10 cm. The main background of the wings is black, powder-coated green scales. On the wings are wide strips of green color. Tails rear wings widened markedly to an end. The iridescent green sheen of the bands of this butterfly is not produced by pigments, but is structural coloration produced by the micro structure of the wing scales.