Setina roscida is a moth of the family Erebidae first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found from western France through central Europe to the Volga area and the Altai.
The wingspan is 19âÂÂ24 mm for males and 14âÂÂ20 mm for females. There are two generations per year with adults on wing from April to June and again from July to September.
The larvae feed on lichen. Larvae are found in late summer. The species overwinters in the larval stage. Pupation takes place in spring.