Stenoma aterpes is a moth in the Depressariidae family. It was described by Walsingham in 1913. It is found in Mexico (Vera Cruz). The wingspan is about 32 mm. The forewings are fawn-grey, with a slight tawny gloss. Two small fuscous spots, one at the end of the cell, preceded by a diffused streak of rather paler fawn, which is repeated along the base of the costa ; a second in the fold, rather beyond its middle, surrounded by the same paler fawn-colour. A faintly darker shade of tawny fawn-grey crosses the wing, leaving the costa at two-thirds, obtusely angulated outward opposite to the middle of the termen and reverting to the dorsum before the tornus. The hindwings are dark brownish grey.