This titi monkey shows regional coat variation. Dark reddish animals are often reported in Peru and more orange-red animals in Brazil.
Peruvian animals are often dark reddish, while Brazilian animals are often more orange-red. The regional pattern is not fully consistent.
In one wild Peruvian group, a male was recorded chewing Psychotria leaves and rubbing them on his abdomen. Self-care is one proposed explanation, but the purpose has not been confirmed.
An extinction-risk assessment has not been added yet.