The Dressy Oldfield Mouse lives in moist montane forest of Venezuela's western Mérida Andes. Its soft grayish coat becomes more rufous toward the rear.
The dorsal fur is soft and woolly, grayish overall and more rufous toward the rump.
It is nocturnal and solitary, using ground-level and arboreal settings. In moist cloud forest it was collected beneath mossy logs and on logs over streams; its diet includes small fruits, plants, and insects.
An extinction-risk assessment has not been added yet.