The Northwestern Conyrat has a clay-buff back streaked with black hair tips, a whitish belly, and an almost white tail. HMW records it from high grasslands in northwestern Argentina.
HMW describes a clay-buff dorsum strongly lined with black hair tips, a whitish underside, and an almost white tail with a narrow darker line along its upper side.
HMW lists isolated treeless grasslands above 2,000 m. At El Infiernillo in Tucumán, the species was recorded in dense bunchgrass divided by rocky gullies.
An extinction-risk assessment has not been added yet.