Evergestis extimalis is a species of moth of the family Crambidae. It is found in the Palearctic. The wingspan is 27–31 mm. The forewings are pale ochreous-yellow, darker terminally ; lines and discal spot hardly darker, marked with a few fuscous dots ; a brown terminal suffusion, more or less strongly dilated towards middle;cilia fuscous. Hindwings prismatic yellow -whitish ; termen yellower, brownish-tinged. The larva is pale yellow ; dorsal line darker ; lateral pale purple ; spots on lateral line black ; head black. The moth flies from June to September depending on the location. The larvae feed on Brassicaceae species preferring the seed-heads.