See text The line-fronted canastero (Asthenes urubambensis) is a Near Threatened species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae.

Adults of the nominate subspecies have a conspicuous whitish supercilium that widens past the eye on an otherwise light brownish face with narrow dark brown streaks.

Their iris is brown, their maxilla black to gray-horn, their mandible silver-gray to pinkish, and their legs and feet olive to gray.

Subspecies A. u. huallagae has slightly darker and redder upperparts than the nominate, with streaks mostly on the forehead and hindneck.

Subspecies A. u. huallagae is found in the Andes of central Peru between the departments of San Martín and Pasco.

The species inhabits the ecotone between timberline and páramo grasslands, a landscape characterized by mossy scrub, Gynoxys and Ribes bushes, and groves of Polylepis trees.

Heavy grazing by livestock and the uncontrolled use of fire also combine to prevent Polylepis regeneration, especially where cutting for timber, firewood and charcoal occurs.