Thiotricha hamulata is a moth of the Gelechiidae family. It was described by Meyrick in 1921. It is found in Indonesia (Java). The wingspan is about 14 mm. The forewings are shining white with the costal edge dark fuscous towards the base and with a slight elongate dark fuscous mark on the dorsum at one-fourth. There is a slender very oblique dark fuscous streak from the middle of the dorsum, reaching nearly half across the wing and a small cloudy fuscous spot on the dorsum before the tornus, as well as a very oblique wedge-shaped dark fuscous mark from the costa towards the apex and a small irregular black apical spot. The hindwings are grey-whitish.