This critically endangered species is endemic to the Caatinga in northeastern Brazil, and it is estimated that less than 250 mature individuals remain.

[2] The blond titi monkey is endemic to the Atlantic forests of eastern Brazil, where it is found in the coastal highlands of Bahia and Sergipe States.

They do tend to be largely arboreal forest dwellers, and the blond titi monkey probably rarely descends to the ground.

[2] The titi monkeys are most active at dawn and dusk foraging for fruits, leaves and insects, and rest at midday.

[2] Despite being home to numerous species found nowhere else in the world, only one percent of the forests of Bahia, home to the blond titi monkey, are under any form of protection and as a number of destructive activities continue to degrade the area, action is required to protect the blond titi monkey's habitat.

[5] Several organizations, including the Brazilian Institute for the Environment, are working to promote the study and protection of Brazil's threatened primates.