The common wave (Cabera exanthemata) is a moth of the family Geometridae. It is found throughout the Palearctic region and the Near East. The wings of this species are white, heavily spotted with tiny yellowish dots, which give it a buffish appearance. The wings are marked with narrow brown fascia, three on the forewing, two on the hindwing. The wingspan is 30–35 mm. One or two broods are produced each year and adults can be seen at any time between May and August. This species flies at night and is attracted to light.