Compsoctena fossoria is a moth in the family Eriocottidae. It was described by Edward Meyrick in 1920. It is found in South Africa.[1]
The wingspan is 19–21 mm. The forewings are grey, much suffused with whitish. There is a basal fascia of dark fuscous suffused irroration (sprinkling), continued as a broad streak along the costa to two-fifths, thence rather obliquely across the wing to near the dorsum, again angulated and continued to near the costa at four-fifths, with a branch to the tornus. A similar spot is found on the costa beyond the middle, and three or four small spots on the costa posteriorly. The hindwings are light fuscous grey.[2]