Family Typical Antbirds (Thamnophilidae)

Least Concern

Predicted Antwren (Herpsilochmus praedictus)


French: Grisin prédit German: Schwarznacken-Ameisenfänger Spanish: Tiluchí de Purús

Herpsilochmus praedictus

Cohn-Haft and Bravo

, 2013,

about 30 km west of Humaitá, Amazonas, Brazil


Recently described alongside closest relative H. stotzi#R, differing from it (in female) in its more uniform and rusty forehead and lores (1), broader, longer and less numerous pale streaks (2), loudsong with many more notes (in our sample 49–59 vs 23–35) (allow 3) and with moderate vs strong final deceleration (3); 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 of all taxa most like H. dorsimaculatus but with larger number of notes (2) and faster initial pace (2)#R. Despite reported relationships#R, the great similarities of this and H. stotzi 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.

S of Amazon from R Juruá to R Madeira, in S Amazonas, Brazil.

Descriptive notes

11–12 cm; 11·2 g. Male is very similar to many congenerics, especially the recently described H. stotzi from which it appears to differ morphologically only in... read more


Loudsong a soft, purring, rolling trill, lasting c. 1·5–2 seconds, which initially rises in... read more


Middle and upper strata of tall humid evergreen forest on terra firme (weathered clay... read more

Food and feeding

Diet unknown beyond arthropods (based on stomach contents). Like other Herpsilochmus, often accompanies mixed-species foraging... read more


Nothing known.


Presumed resident.

Status and conservation

Not globally threatened (Least Concern). Reasonably common and widespread, with a comparatively wide habitat tolerance. Confined to the area between the R Juruá and R Madeira... read more

Recommended citation

del Hoyo, J., Collar, N. & Kirwan, G.M. (2020). Predicted Antwren (Herpsilochmus praedictus). 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 27 February 2020).