Appearance
The wingspan is 18–22 mm. The length of the forewings is 13–15 mm. Forewing triangular, the apex rectangular, the termen curved; veins 7, 8, 9 stalked. Forewing straw yellow, becoming deeper terminally; with a black brown reniform stigma containing two black dots; inner and outer lines brownish, obscure, the outersinuous, excurved round the cell; hindwing luteous with a yellow tinge, darker terminally.
Behavior
The moth flies from May to October depending on the location.Larva green;dorsal line darker; subdorsal white; head greenish ochreous.The larvae feed on various grasses, such as False Brome and Purple Moor Grass.
Different habitats include moist grasslands, wasteland, sparse forests, alder forests and parklands.
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