Adults: Depending on the species, appearance can vary. The adults usually are quite drab looking; the false codling moth is a good example for reference. They are generally mottled with browns and greys, although some can be colourful. The wings usually are quite broad, almost appearing rectangular. They are small to medium-sized (wingspans 3cm or less). Their resting posture is distinctive, where at rest they hold the wings like a pointed roof above the body.
Larvae: The larvae are often cryptic, forming refuge from their silk. They do this using leaves of the host, either rolling leaves with silk or burrowing into the leaves and fruits. Some species can cause galls to form on the host. Galls are abnormal tumours, produced by the plant in response to larvae on the host. The larvae will feed and burrow within the gall, where they remain protected until fully grown.
Pupae: Larvae will either pupate underground or beneath the leaves of the host.