A moth is an insect like a butterfly which usually flies about at night. Any of several thousand lepidopteran species, found in all but polar habitats. Moths are chiefly nocturnal and have a stouter body, duller colouring, and proportionately smaller wings than butterflies. They have distinctive feathery antennae and, when at rest, fold their wings, wrap them around the body, or hold them extended at their sides. Wingspans range from less than 1 in. (2.5 cm) to about 1 ft (30 cm). The life cycle has four stages: egg, larva (caterpillar, or worm), pupa (chrysalis), and adult (imago). Both larvae and adults of most species are plant eaters, and many seriously damage forests, agricultural crops, and fabrics. See also bagworm moth; gypsy moth; hawk moth; luna moth; miller; saturniid moth; silkworm moth; tiger moth; tussock moth. owlet moth bagworm moth gypsy moth hawk moth sphinx moth luna moth saturniid moth giant silkworm moth silkworm moth tiger moth tussock moth