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 meat the species is found commonly close to Indian settlements. The species is classified "Least Concern" (formerly LR) in the IUCN Red List. Actually the Colombian black-handed titi may be slightly endangered due to its presence in a zone of heavy colonization, but presently it is classified LC with the other subspecies. Fortunately the Colombian black-handed titi is found in La Paya National Park in Colombia, although the park itself is very vulnerable to surrounding colonization. The Lucifer titi is protected in Colombia by Amacayacu National Park and Cahuinarí National Park, while the black titi may be protected in Chiribiquete