Collita griseola, the dingy footman, is a moth of the family Erebidae. The species was first described by Jacob Hübner in 1803. It is found in Europe and North and South-East Asia.
The wingspan is 32–40 mm. The moth flies from May to August depending on the location.
The larvae feed on lichen.
This species has shown a spectacular increase in abundance in Britain during the period 1968 to 2007, like a number of moth species with larva that feed on lichens and algae.[1] In Britain it was originally limited to southern fens and marshy areas, but has since spread northwards and now occupy a variety of habitats, including gardens.[1]