The black-striped sparrow (Arremonops conirostris) is a passerine bird found from eastern Honduras to western Ecuador, northern Brazil, and Venezuela.

This American sparrow is a common bird in humid lowlands and foothills up to 1,500 m (4,900 ft) altitude, in semiopen habitats such as thickets, young second growth, overgrown fields, shady plantations, and gardens.

The large, domed nest, built by the female, is made of coarse plant material and has a wide side entrance.

The male's song, given from the ground or a low perch, consists of a whistles and slurred notes, tsweet-tsweet tsweet-tswee ti-ti-ti, followed by a trill, but varies geographically.

The black-striped sparrow feeds on insects, spiders, and seeds taken on the ground, and also picks berries and invertebrate prey from low bushes.