Host plants:
The caterpillar lives polyphagous on herbs and low shrubs.
Habitat:
Diarsia mendica inhabits slightly hygrophile to slightly dry and more montane habitats such as edges in forests, mountain meadows and alpine dwarf shrub belts.
Life cycle:
The caterpillar overwinters and is grown in the spring from April to June (depending on altitude, observations in June in 2100m above sea level in the Valais). Diarsia mendica flies in a single generation from June to July/August.
Remarks:
The spread ranges from Central and Northern Europe (also locally in Southern Europe on mountains) to China.