The Junín red squirrel is an arboreal squirrel recorded in Peru. Its back is reddish brown, while the underside ranges from white to more reddish shades.
The dorsal fur is reddish brown. The underside ranges from whitish to reddish, rather than having one fixed color.
It is active by day and mainly uses trees. Foraging groups observed outside the breeding season averaged 1.6 animals, pointing to solitary or very small groups in those observations.
An extinction-risk assessment has not been added yet.