Superregnum: Eukaryota
Cladus: Obazoa
Cladus: Opisthokonta
Cladus: Holozoa
Cladus: Filozoa
Cladus: Choanozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Olfactores
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Sauropsida
Cladus: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Neodiapsida
Cladus: Sauria
Cladus: Archelosauria
Cladus: Archosauromorpha
Cladus: Crocopoda
Cladus: Archosauriformes
Cladus: Eucrocopoda
Cladus: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Cladus: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Cladus: Saurischia
Cladus: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Subclassis: Aves
Ordo: Passeriformes
Subordo: Tyranni
Infraordo: Tyrannides
Parvordo: Tyrannida
Familia: Tyrannidae
Genus: Nesotriccus
Species: N. maranonicus – N. murinus – N. ridgwayi – N. tumbezanus
Name
Nesotriccus Townsend, 1895
Typus: Nesotriccus ridgwayi Townsend, 1895
Synonyms
Phaeomyias Berlepsch, 1902
Chaeomyias Ridgway, 1906 orth. err. for Phaeomyias Proc.Biol.Soc.Wash. p. 11 notes BHL
References
Primary references
Townsend, C.H. 1895. Birds from Cocos and Malpelo Islands, with Notes on Petrels obtained at sea. Bulletin of the Museum of Comparative Zoology at Harvard College 27 no.3: 121–126; pl. 1–2. Cambridge. Mass. USA. BHL Reference page. p. 124
Additional references
Zucker, M.R., Harvey, M.G., Oswald, J.A., Cuervo, A.M., Derryberry, E.P. & Brumfield, R.T. 2016. The Mouse-colored Tyrannulet (Phaeomyias murina) is a species complex that includes the Cocos Flycatcher (Nesotriccus ridgwayi), an island form that underwent a population bottleneck. Molecular Phylogenetics and Evolution 101: 294–302. DOI: 10.1016/j.ympev.2016.04.031 PDF Reference page.
Nesotriccus is a genus of Central and South American birds in the tyrant flycatcher family Tyrannidae.
Taxonomy
The genus Nesotriccus was introduced in 1895 by the American zoologist Charles Haskins Townsend with Nesotriccus ridgwayi Townsend CH 1895, the Cocos tyrannulet as the type species.[2][3] The genus name combines the Ancient Greek νησος/nēsos meaning "island" with the genus Triccus that had been introduced in 1846 by Jean Cabanis for a tody-tyrant.[4][5]
Species
The genus contains four species:[6]
Image Scientific name Common Name Distribution
Nesotriccus murinus Mouse-colored tyrannulet from Costa Rica and Panama south to Brazil and northern Argentina
Nesotriccus ridgwayi Cocos tyrannulet Cocos Island
Nesotriccus tumbezanus Tumbesian tyrannulet southwest Ecuador and northwest Peru
Nesotriccus maranonicus Maranon tyrannulet northeastern Peru
The Tumbesian tyrannulet was formerly considered conspecific with the widespread mouse-colored tyrannulet. The two species are visually very similar, but vocally distinct.[7]
References
"Tyrannidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-16.
Townsend, Charles Haskins (1895). "Birds from Cocos and Malepo Islands with notes on petrels obtained at sea". Bulletin of the Museum of Comparative Zoology. 27: 121-126 [124].
Traylor, Melvin A. Jr, ed. (1979). Check-List of Birds of the World. Vol. 8. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 145.
Jobling, James A. "Nesotriccus". The Key to Scientific Names. Cornell Lab of Ornithology. Retrieved 29 March 2025.
Cabanis, Jean (1845–1846). von Tschudi, Johann Jakob (ed.). Untersuchungen über die Fauna Peruana: Ornithologie (in German). St. Gallen, Switzerland: Scheitlin und Zollikofer. p. 164.
Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (February 2025). "Tyrant flycatchers". IOC World Bird List Version 15.1. International Ornithologists' Union. Retrieved 29 March 2025.
Rheindt, Frank E.; Norman, Janette A.; Christidis, Les (2008). "Genetic differentiation across the Andes in two pan-Neotropical tyrant-flycatcher species". Emu. 108 (3): 261–268. Bibcode:2008EmuAO.108..261R. doi:10.1071/mu08020. S2CID 83868957.
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