Family Typical Antbirds (Thamnophilidae)

Least Concern

Aripuana Antwren (Herpsilochmus stotzi)


French: Grisin de Stotz German: Aripuanaameisenfänger Spanish: Tiluchí de Aripuana

Herpsilochmus stotzi

Whitney et al.

, 2013,

left bank of Rio Aripuanã, about 80 km south-east of Manicoré at “comunidade Itapinima”, Amazonas, Brazil


Recently described alongside closest relative H. praedictus#R, differing from it in characters given under that species, and from other taxa in the “Bahia Antwren complex” (H. sellowi, H. pileatus, H. atricapillus, H. motacilloides and H. parkeri) in its paler, creamy-white throat (1), more extensively and purely white underparts (2), and loudsong most like that of H. atricapillus (of all taxa) but usually without 1–3 introductory notes (1) and with lower maximum frequency (no overlap; 3)#R. Despite reported relationships#R, the great similarities of this and H. praedictus to other taxa in group, both vocally and in plumage, suggest that further analysis, using nuclear genes, is appropriate to confirm current arrangement of species. Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.

C Amazonian Brazil on right bank of R Madeira, in R Aripuanã–R Machado interfluvium and R Roosevelt (SE Amazonas, N Rondônia, NW Mato Grosso).

Descriptive notes

11–12 cm; 10·8 g. Initially believed to represent an outlying population (the westernmost) of H. atricapillus and the adult male is a typical example of this group... read more


Loudsong, given by both sexes, lasts c. 1·5–2 seconds and is soft, purring, rolling trill that... read more


Inhabits lower-stature but old-growth campinarana forest, especially those on nutrient-... read more

Food and feeding

Diet known solely from stomach contents of eight individuals, which contained fragments and insects and two held parts of spiders.... read more


Virtually no information, but nesting is predicted to occur in Jul and Aug based on the observation of a just-fledged juvenile that was... read more


Presumed resident.

Status and conservation

Not globally threatened (Least Concern). Fairly common or common, and there are few known anthropogenic threats. However, the species’ range is comparatively small and the... read more

Recommended citation

del Hoyo, J., Collar, N. & Kirwan, G.M. (2020). Aripuana Antwren (Herpsilochmus stotzi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 24 February 2020).