[2] The striated antbird has two subspecies, the nominate D. d. devillei (Ménégaux & Hellmayr, 1906) and D. d. subochracea (Chapman, 1921).

Their flight feathers are slate gray with cinnamon edges and their wing coverts black with white tips.

It occurs locally within a thin band from Meta Department in southeastern Colombia into northern Ecuador's Napo Province.

It separately occurs in a larger area from southeastern Peru south into Bolivia as far as Cochabamba Department and east into Brazil to the Rio Madeira.

The species inhabits the understorey of humid evergreen forest where it is almost entirely found in stands of Guadua bamboo.

[1] The striated antbird's diet is not known in detail; it feeds primarily on insects (with a possible preference for caterpillars) and probably also on spiders.

[3][5][6][7][8] Except for a sighting of a female entering a dome-shaped nest in bamboo, the striated antbird's breeding biology is unknown.

The striated antbird's song is "2-parted, first several harsh, buzzing notes followed by an accelerating series of peeping whistles: chewDJZZ-DJAA-DJAA tew-tew-ti-ti-titutututututu".