This tarsier is known from the southwestern peninsula of Sulawesi around Makassar. A 2010 taxonomic study restored the name T. fuscus, distinguishing it from T. tarsier on Selayar Island.
A species treatment describes reddish-brown dorsal fur, paler underparts, dark markings around the nose, and a tufted tail.
A survey at Balocci recorded 13 groups comprising 44 animals in secondary forest, plantations, and vegetation near settlements. Sleeping sites included rock crevices, cracks in Ficus trees, sugar palms, and bamboo.
An extinction-risk assessment has not been added yet.