Host plants:
The larva lives on the leaves of Pteridium aquilinum.
Habitat:
Callopistria juventina settles in stands of Pteridium aquilinum mostly in or near woodlands in not too cold, more atlantic climate as it is found in the Upper Rhine valley or in parts of western and Southern Europe.
Life cycle:
The moths appear between June and early September with maximum in late July. The caterpillars develop between July and early October. They construct a cocoon in the litter where they hibernate and pupate not until spring.
Remarks:
Callopistria juventina is distributed from Morocco across southern and parts of Central Europe and temperate Asia to Japan.