Family Typical Antbirds (Thamnophilidae)

Least Concern

Rufous-bellied Antwren (Isleria guttata)


French: Myrmidon moucheté German: Rostbauch-Ameisenschlüpfer Spanish: Hormiguerito ventrirrufo

Myrmothera guttata


, 1824,

#R, Cayenne, French Guiana


Close to I. hauxwelli, but no other obvious close relatives. Monotypic.


S Venezuela (Bolívar, Amazonas), the Guianas and NE Amazonian Brazil (N of R Amazon from E of R Negro E to Amapá).

Descriptive notes

8·5–9·5 cm; 8·5–11 g. Tail short, making body appear disproportionately large. Male is mostly grey, with throat paler, interscapular patch white, pale cinnamon... read more


Loudsong a long, countable series (e.g. 17 notes, 9 seconds) of whistles that gains in intensity... read more


Understorey of lowland evergreen forest, to 600 m, occasionally higher. Primarily in terra... read more

Food and feeding

Little published. Stomach contents of specimens from Surinam included a variety of lepidopteran larvae, orthopterans (Tettigoniidae),... read more


In French Guiana, two nests in Sept (details previously unpublished) and other families seen in Sept–Dec; in Surinam, fledgling just... read more


Presumed resident throughout range.

Status and conservation

Not globally threatened. Uncommon to fairly common. Species’ range includes some large protected areas, e.g. Canaíma, La Neblina and Jaua-Sarisariñama National Parks and the... read more

Recommended citation

Zimmer, K. & Isler, M.L. (2020). Rufous-bellied Antwren (Isleria guttata). 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 26 February 2020).