Euchlaena serrata, the saw-wing moth, is a species of moth of the family Geometridae. It is found in eastern North America. The wingspan is 40 to 47 millimetres (1.6 to 1.9 in). The outer third of both wings is reddish-brown and the inner two-thirds is light yellow. Adults are on wing from April to August. The larvae feed on Pyrus, Malus, Acer and Vaccinium species.