White-eared titi Titi monkeys will also eat small insects (ants, moths, butterflies, and their cocoons), spiders, and can catch flying prey if it comes close to them. During the dry season there is an increased feeding time on leaves, and during lactation it is thought insect consumption increases to augment the protein content of the diet. The titi monkey may travel between during the day, and can maintain a home range of . During the dry season there is less fruit available and therefore less need to travel large distances, so the day range may only be a third of the usual
Collared titi least two species in this complex. But whether the Lucifer titi, "Cheracebus lucifer", or the Colombian black-handed titi, "Cheracebus medemi", are good species from this complex is in doubt. They are probably subspecies of "Cheracebus torquatus". Nevertheless, in this treatment "C. torquatus" is used in the sense of Hershkovitz (1990) until the systematics of this species complex becomes clearer. Five adults weighed an average of 1462 g (range 1410–1722 g) with a head-body length of around 290–390 mm and a tail length of about 350–400 mm. The face has very little hair, being limited to sparse short white hairs over