Host plants:
The caterpillars feed on lichens, mosses, dead and tender plant parts and algae.
Habitat:
Eilema complana inhabits grasslands of all kinds from very shrubby to extremely xerothermic, preferably also with rocky or stony sections (but this is not necessary). Besides, also quarries, forest edges, light woodlands and clearings, moorlands and other similar sites are among its habitats.
Life cycle:
The caterpillar overwinters and is to observe commonly between the end of February to May or June. Often you will encounter the larva in the early morning or or in damp weather. Occasionally the caterpillars rest well exposed at blades of grass in extreme heat (heat escape from the soil level). The moths fly particularly from late June to August.
Endangerment factors:
Mostly, Eilema complana is the most common species of the genus, particularly in mountainous areas on limestone.
Remarks:
Eilema complana is widespread in Europe and temperate parts of Asia.