We describe a distinctive new species of antbird (Passeriformes: Thamnophilidae) from humid montane forest (1,340–1,670 m above sea level) of the Cordillera Azul, San Martín Region, Peru. Plumage, voice, and molecular evidence distinguish this species from its sister taxon Myrmoderus ferrugineus (Ferruginous-backed Antbird), which is found in lowland Amazonian rainforests of the Guiana Shield and Madeira-Tapajós interfluvium. The new species is presently known only from one ridge in the Cordillera Azul, and therefore we recommend further fieldwork to better estimate its distribution and population size.
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28 January 2017
A new species of antbird (Passeriformes: Thamnophilidae) from the Cordillera Azul, San Martín, Peru
Andre E. Moncrieff,
Oscar Johnson,
Daniel F. Lane,
Josh R. Beck,
Fernando Angulo,
Jesse Fagan
The Auk
Vol. 135 • No. 1
January 2018
Vol. 135 • No. 1
January 2018
Myrmeciza
Myrmoderus
new species
outlying ridges
taxonomy