Typical Antbirds (Thamnophilidae)

Large-billed Antwren (Herpsilochmus longirostris) - HBW 8, p. 608

French: Grisin à grand bec German: Fleckenbrust-Ameisenfänger Spanish: Tiluchí Piquilargo

Taxonomy: Herpsilochmus longirostris Pelzeln, 1868, Cuiabá, Mato Grosso, Brazil.
Thought to be most closely related to H. pectoralis on basis of plumage and distribution, although vocalizations not closely similar. Monotypic.

Distribution: Bolivia (locally in N Beni, N Santa Cruz) and SC & NE Brazil (C Mato Grosso E to Tocantins and Goiás, extending NE locally to S Ceará and S Piauí, and S to W Paraná and W São Paulo).