A new species of antbird (Passeriformes: Thamnophilidae) from the Cordillera Azul, San Martín, Peru. (28th January 2017)

• Record Type: Journal Article
• Authors: Moncrieff, Andre E.; Johnson, Oscar; Lane, Daniel F.; Beck, Josh R.; Angulo, Fernando; Fagan, Jesse
• Is Part Of: Auk. Volume 135:Number 1(2018)
• Page Start: 114
• Page End: 126
• Publication Date: 2017-01-28
• Subjects: Myrmeciza -- Myrmoderus -- new species -- outlying ridges -- taxonomy; Birds -- Periodicals; Ornithology -- Periodicals; Oiseaux -- Périodiques; Ornithologie -- Périodiques; Birds; Ornithology; Birds; Periodicals; 598
• DOI: 10.1642/AUK-17-97.1
• Languages: English
• ISSNs: 0004-8038

Abstract

Abstract: 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.