Tetragonus catamitus, the common butterfly moth, or Philippine callidulid moth, is a moth of the family Callidulidae. Noted from Taiwan, north-eastern India, south-west India, Andaman and Nicobar Islands, Sri Lanka, the Tenasserim Hills of Burma and from Java. They are day-flying moths that can be easily mistaken for a butterfly due to the position in which they hold their wings.