Eudonia delunella

Eudonia delunella is a species of moth of the family Crambidae. It was described by Henry Tibbats Stainton in 1849 and is found in Europe.
The wingspan is. The forewings are white, irregularly blackish-mixed with a black triangular mark from base of costa; lines white, dark-edged, first irregular, second strongly sinuate; an irregular blackish costal blotch beyond first including orbicular and claviform, and a quadrate blotch before second concealing discal spot; terminal area blackish, subterminal line white, touching second in middle. Hindwings are light grey, darker terminally; a darker discal mark. The larva is greenish-yellow; spots, head, and plate of 2 dark bronzy -brown.
The moth flies from June to September depending on the location.
The larvae feed on various mosses and lichen.