Antaeotricha amphilyta is a moth of the family Depressariidae. It is found in the Guianas and Brazil. The wingspan is 17–18 mm. The forewings are white with dark fuscous markings. There is a short basal transverse mark from the costa and an oblique dash above the base of the dorsum, connected with a narrow fuscous streak along the basal half of the dorsum, as well as a short dash towards the base in the middle. There is an irregular line from one-fifth of the costa to the middle of the dorsum reduced to a short costal and larger dorsal segment, with a short dash in the middle between them. Two slightly sinuate oblique lines are found from the costa at the middle and three-fourths, on the dorsal half limiting a quadrate fuscous pre-tornal blotch and there are seven or eight black marginal d