This wren inhabits the Tepui highlands of southern Venezuela, western Guyana, and northern Brazil. It walks on the forest floor in dark brown plumage and gives a long song that glides smoothly upward in pitch.
Adults have a dark chocolate-brown crown, with a rufous tint on the back and rump. The chin is lighter brown, and fine feather edging gives the breast and upper belly a subtly scaled look.
It spends much of its time walking on the forest floor and is difficult to see. After a short introduction, its song glides upward for about 10–20 seconds. It is sedentary, and its diet has not been well studied.
An extinction-risk assessment has not been added yet.