Morpho polyphemus, the white morpho or Polyphemus white morpho, is a white butterfly of Mexico and Central America, ranging as far south as Costa Rica. As suggested by its name, this is one of the relatively few Morphos that is white rather than blue. Some authorities include M. luna, which is also white, as a subspecies of M. polyphemus.
Both the upper and lower wings are bright white, with some small light brown markings. There is a row of small eyespots on the underside of the hindwings.
The caterpillar has been known to eat Paullinia pinnata (family Sapindaceae) and Inga (family Fabaceae).
The species epithet is derived from Polyphemus, a character in Greek mythology, from the small eyespots on the wing. Polyphemus was the one-eyed son of Poseidon and Thoosa.
