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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Subsectio: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Theropoda
Cladus: Neotheropoda
Infraclassis: Aves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Passeroidea

Familia: Thraupidae
Genus: Idiopsar
Species: I. brachyurus – I. dorsalis – I. erythronotus – I. speculifer
acc. SACC 730.16; IOC 10.2.

Idiopsar Cassin, 1867

Typus: Idiopsar brachyurus Cassin, 1867


Chionodacryon Burns, Unitt & Mason, 2016
Ephippiospingus Burns, Unitt & Mason, 2016

Primary references

Cassin, J. 1866. A second study of the Icteridæ. Proceedings of Academy of Natural Sciences of Philadelphia 18: 403–417. BHL Reference page. First availability p. 414 BHL

Additional references

Burns, K.J., Shultz, A.J., Title, P.O., Mason N.A., Barker, F.K., Klicka, J., Lanyon, S.M. & Lovette, I.J. 2014. Phylogenetics and diversification of tanagers (Passeriformes: Thraupidae), the largest radiation of Neotropical songbirds. Molecular Phylogenetics and Evolution 75:41–77. DOI: 10.1016/j.ympev.2014.02.006 Full article (PDF) Open accessReference page.
Barker, F.K., Burns, K.J., Klicka, J., Lanyon, S.M. & Lovette, I.J. 2015. New insights into New World biogeography: An integrated view from the phylogeny of blackbirds, cardinals, sparrows, tanagers, warblers, and allies. The Auk 132(2): 333-348. DOI: 10.1642/AUK-14-110.1 Open accessReference page.
Burns, K.J., Unitt, P. & Mason, N.A. 2016. A genus-level classification of the family Thraupidae (Class Aves: Order Passeriformes). Zootaxa 4088(3): 329–354. DOI: 10.11646/zootaxa.4088.3.2 Paywall.Reference page.

Idiopsar is a genus of Neotropical seed-eating birds in the tanager family Thraupidae.
Taxonomy and species list

The genus Idiopsar was introduced in 1867 by the American ornithologist John Cassin to accommodate the newly described boulder finch.[1] The name combines the Ancient Greek idios meaning "distinct" or "peculiar" with psar meaning "starling".[2]

This genus formerly contained a single species, the boulder finch. A molecular phylogenetic study of the tanager family, Thraupidae, published in 2014 found that the boulder finch was a member of a clade that contained three species assigned to other genera. In the reorganization of the generic boundaries, these three species were assigned to Idiopsar. The same genetic study found that Idiopsar is sister to the tit-like dacnis in the monospecific genus Xenodacnis.[3][4]

The genus contains four species.[4]

Red-backed sierra finch, Idiopsar dorsalis (former assigned to Phrygilus)
White-throated sierra finch, Idiopsar erythronotus (former assigned to Phrygilus)
Glacier finch, Idiopsar speculifer (former assigned to Diuca)
Boulder finch, Idiopsar brachyurus


Cassin, John (1866). "A second study of the Icteridae". Proceedings of the Academy of Natural Sciences of Philadelphia. 18: 403-417 [414]. Although 1866 appears on the title page, the article was not published until 1867.
Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 202. ISBN 978-1-4081-2501-4.
Burns, K.J.; Shultz, A.J.; Title, P.O.; Mason, N.A.; Barker, F.K.; Klicka, J.; Lanyon, S.M.; Lovette, I.J. (2014). "Phylogenetics and diversification of tanagers (Passeriformes: Thraupidae), the largest radiation of Neotropical songbirds". Molecular Phylogenetics and Evolution. 75: 41–77. doi:10.1016/j.ympev.2014.02.006.
Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2020). "Tanagers and allies". IOC World Bird List Version 10.2. International Ornithologists' Union. Retrieved 4 November 2020.

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