The
wingspan of female
Opsiphanes cassina are roughly wide, while males' wingspans are smaller. The uppersides of their wings are dark brown, with yellow-orange bands crossing the forewings and the edges of the hindwings. The undersides of the wings are also brown, with some large
eyespots. Adults of this species are only alive for about ten days, in which they have to feed, mate and lay their eggs. The larvae are bright green, and possess two prong-like protrusions on their rear. Their diet includes
Cocos nucifera,
Livistona species,
Acrocomia vinifera,
Bactris guineensis,
Erythrea salvadorensis and
Roystonea regia. They are also dangerous defoliators of the
oil palm. ==Distribution==