Dichomeris excepta is a moth in the Gelechiidae family. It was described by Meyrick in 1914. It is found in Malawi and Zimbabwe. The wingspan is about 10 mm. The forewings are light greyish-ochreous with the costa slenderly whitish from the base to the apical patch. The plical and first discal stigmata are black, the plical slightly anterior, and with a small black dot in the disc midway between the plical and the base. There is also a fuscous apical patch, its anterior edge dark fuscous and limited by a hardly excurved whitish line from the costa before three-fourths to the dorsum before the tornus. The hindwings are pale grey.