The life history of Antirrhaea philoctetes (Linnaeus) (Lepidoptera: Nymphalidae: Morphinae) is described from material reared on palms in the family Arecaceae (=Palmae). The hemispherical egg is yellowish light green and 2.5 mm in diameter. There are five larval instars. The mature larva differs from those of other described Antirrhaea species in its elaborate pattern of maroon and yellow patches. Each larval instar bears a pair of long whiplike tails that compose half the length of the body. The pupa is mottled and patterned with tan, brown, and some green, resembling a crumpled leaf. The complete life cycle takes 70 days at ambient temperatures in Trinidad (7 days in the egg stage, 50 days in five larval instars, and 13 days as a pupa).
