The simple wave, is a moth of the Geometridae family. The wingspan is 20–26 millimetres (0.79–1.02 in). Adults are on wing from late May to August. There is one generation per year. The larvae feed on various plants, including chickweed, clover and elm.
Spotted at the edge of a meadow. Cascade foothills.
Lat: 47.23, Long: -121.08
Spotted on Jun 6, 2018
Submitted on Jul 21, 2018