This nocturnal monkey occurs in seasonally flooded lowland forest in northeastern Peru. At night it searches the trees for fruit, flowers, nectar, and insects. The Mammal Diversity Database accepts Aotus nancymai, while the ADW species account uses A. nancymaae.
Its coat is gray to brown, with reddish-orange fur on the neck and inner limbs. It has large eyes and a tail with a black tip.
At night it feeds in the canopy on fruit, flowers, nectar, and insects. Its habitat includes lowland forest that floods seasonally.
An extinction-risk assessment has not been added yet.