Stenoma subnotatella is a moth in the Depressariidae family. It was described by Walker in 1864. It is found in Brazil (Ega). Adults are whitish, the forewings rounded at the tips and with three blackish points in a line along the disc, as well as an elongated blackish dot between the first and second points, but nearer the interior border. There are two blackish costal points, the first nearly opposite the dot and the costa and exterior border are very slightly convex, the latter hardly oblique.