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Psychidae (bagworms; subclass Pterygota, order Lepidoptera) Family of moths in which the males are always winged, while in the females the wings are often reduced or absent. The larva lives within a case that is often characteristic of the species, and is often constructed of leaves, twigs, or sand grains. Most larvae feed on detritus. The family is distributed world wide.

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bagworms See PSYCHIDAE.