Host plants:
The caterpillar lives polyphagous on herbs. On the Täschalpe in Valais, I found repeatedly caterpillars in May and June on Helianthemum and Fabaceae.
Habitat:
Gnophos obfuscatus inhabits sunny, nutrient-poor and dry pastures and dwarf shrub belts with partially gappy vegetated soil and rocks.
Life cycle:
The caterpillar overwinters and is mature in May or June. The moths fly from mid-June to August.
Remarks:
Gnophos obfuscatus occurs locally in the European mountains (especially in the Pyrenees and Alps), and in large parts of Scandinavia. She finds herself to the east to Siberia.