The Ayacucho Thistletail is recorded from a few small valleys in eastern Ayacucho, southern Peru. It inhabits elfin forest and has a long tail with olive-brown upperparts.
It has a long tail, olive-brown upperparts, and grey underparts. A dark line passes through the eye, there is no pale eyebrow, and the chin is reddish chestnut.
It is recorded in elfin forest. The study documents it in three small valleys of the Apurímac drainage.
An extinction-risk assessment has not been added yet.