Host plants:
The caterpillar lives primarily on silver fir (Abies alba), but according to literature also on spruce (Picea abies).
Habitat:
Thera variata inhabits coniferous forests.
Life cycle:
The caterpillar overwinters (maybe also the pupa?). The moths fly from mid-April to mid-October, usually in two generations.
Remarks:
Thera variata is widespread in Europe (except UK).