Psychophora sabini is a moth of the Geometridae family. It is found in northern Europe, Asia and northern North America, including Greenland. The habitat consists of rocky heath, mostly above 1,000 meters above sealevel. The wingspan is 22–29 mm. Adults are on wing in July. They feed on flower nectar of various flowers, but mainly Silene acaulis. The larvae feed on Vaccinium myrtillus. Larvae can be found from August to June. It overwinters as a larva.