About Eupithecia ravocostaliata Packard, 1876
Eupithecia ravocostaliata (Packard, 1876), commonly known by the common names tawny eupithecia and great variegated pug, is a moth species that belongs to the family Geometridae. This species was first formally described by Alpheus Spring Packard in 1876. Its known distribution ranges across northern New York and the New England states of the United States. It also extends across Canada from the Maritime provinces to Vancouver Island, and south along the western coast of North America as far as the San Francisco Bay region. The wingspan of adult individuals of this species is approximately 20 mm. Adult moths have been recorded in flight from January through August. The larvae of this moth species feed on the foliage of Rhamnus purshiana.