Gabriola dyari is a moth of the Geometridae family. It is found from the Alaskan panhandle and British Columbia to California. The habitat consists of coniferous forests. The wingspan is 25–30 mm. The forewings are brownish-gray with black speckling and lines. The hindwings are uniformly brownish-gray except for a dark thin terminal line. There is one generation per year with adults on wing from June to October in California.