This brush-warbler occurs in southwestern Madagascar from sea level to about 500 m. It has a long graduated tail and searches for insects by day, alone or in pairs.
It is about 17–18 cm long, pale gray above and whitish below, with very short wings and a long graduated tail.
It is diurnal and occurs alone or in pairs. The account reports insect feeding in scrub, coastal thickets and grassland edges.
An extinction-risk assessment has not been added yet.