This titi monkey has reddish cheek fur and a mostly black tail. Food records are preliminary, and its habitat use is not yet known.
The cheek whiskers, underside, and inner limbs range from light red to dark reddish brown. The upper parts are grayish to blackish; the tail is mostly or entirely black, and white ear tufts are absent.
A preliminary list from direct observations in Amazonia National Park includes fruits and palm seeds. Adults and subadults were also seen foraging on the ground for leaf-cutter ants; resin and small invertebrates were recorded mainly in the dry season.
An extinction-risk assessment has not been added yet.