Last modified: Aug. 13, 2022, 11:44 a.m.
This very rare and local species has not been seen in LG for quite some time.
The adults fly from mid-June through August, with a peak around mid-July.
In summer and autumn, the young caterpillars live only on ferns (especially Dryopteris filix-mas and related species) and only rarely on Pteridium aquilinum.
In spring the caterpillars are polyphagous because the caterpillars have not yet found any newly sprouted fern fronds after hibernating, they now feed on numerous flowering plants from very different families.
Mountain forest with ferns.