The
wingspan is 15–19 mm. The basic color of the forewings is rosy or purplish (hence the Latin species name
rosaceana, meaning pinkish) when the moth is freshly emerged, but it turns quickly to a dull buff tinge or a rufous coloration, with a lightly reticulated (net-like) pattern. Julius von Kennel provides a full description. These
bivoltine moths fly during the afternoon and evening from May to July The
caterpillars feed in April and May mainly on the rootstock of sow thistles (
Sonchus species) and common dandelion (
Taraxacum officinale), ==Distribution and habitat==