Appearance
The wingspan is 15–21 millimetres . Adults are brown. The upperside of the wings is bright brownish with bright white bands. The underside of the wings are dark grey-brown, although they become lighter near the end. Adults are on wing from June to August. They fly during the day and at dusk.
Food
The larvae feed on ''Hieracium umbellatum'', ''Hieracium amplexicaule'', ''Hieracium sabaudum'' and ''Picris hieracioides''. They feed in the heart of their host plant and later spin the top-leaves together. Pupation occurs on the upper surface of a leaf or along the stem.References:
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