The White Slant-line or White Slaut (Tetracis cachexiata) is a moth of the Geometridae family. It is found from Nova Scotia to central British Columbia, south to northern Florida and west to Montana and northern Colorado. The length of the forewings 19–26 mm. Adults are on wing from May to early July. The larvae feed on various plants including Alnus, Betula, Prunus, Salix, Tilia, Ulmus, Viburnum, Abies, Larix, Pinus, and Tsuga species.