Stenoma hyacinthitis is a moth in the Depressariidae family. It was described by Meyrick in 1930. It is found in Guyana. The wingspan is about 16 mm. The forewings are dark greyish-violet with the veins posteriorly marked with very fine lines of whitish-ochreous scales not reaching the margin. The plical and second discal stigmata are indicated by ochreous-whitish dots or marks on each side and there is a whitish dot on the dorsum at one-third, as well as a short curved oblique ochreous-whitish streak from the costa at one-third, and the costal edge whitish from this to two-thirds. A whitish-ochreous marginal line is found around the apical fourth of the costa and termen to the tornus. The hindwings are rather dark grey.