Thiotricha oxytheces is a moth of the family Gelechiidae. It was described by Edward Meyrick in 1904. It is found in Australia, where it has been recorded from New South Wales and Queensland.[1]
The wingspan is . The forewings are pale shining bronzy ochreous, more whitish towards the costa anteriorly. The costal edge is dark fuscous on the anterior half and there is a suffused fuscous mark along the dorsum from one-fifth to the middle and a suffused whitish streak along the posterior half of the dorsum, interrupted by an elongate fuscous mark on the submedian fold. An outwardly oblique white fuscous-edged mark is found above the tornus, and a white costal dot above its upper extremity. There is also a black apical dot. The hindwings are light grey with a minute black apical dot.[2]