Deltoplastis commodata is a moth in the Lecithoceridae family. It was described by Meyrick in 1923. It is found in Sri Lanka. The wingspan is about 15 mm. The forewings are rather dark bronzy-fuscous with an obscure cloudy whitish transverse line at two-fifths, the groundcolour rather darker before it. There is a slight cloudy whitish transverse mark on the costa at two-fifths, and a pre-tornal dot opposite and sometimes some faint whitish speckling towards the termen. There is a black marginal line around the apical part of the costa and termen, thicker on the costa. The hindwings are grey.