Geospizopsis

Geospizopsis is a genus of seed-eating birds in the tanager family Thraupidae that are commonly known as sierra finches.

Geospizopsis
Plumbeous sierra finch (Geospizopsis unicolor)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Thraupidae
Genus:	Geospizopsis Bonaparte, 1856
Type species
Geospizopsis typus[1] = Passerculus geospizopsis Bonaparte, 1853
Species
See text

Taxonomy and species list

The two species now placed in Geospizopsis were formerly placed in the genus Phrygilus. A molecular phylogenetic study of the tanagers published in 2014 found that Phrygilus was polyphyletic.^[2] In the subsequent rearrangement to create monophyletic genera, the genus Geospizopsis was resurrected.^[3][4] It had originally been introduced in 1856 by the French naturalist Charles Lucien Bonaparte with Passerculus geospizopsis Bonaparte, 1853 as the type species.^[5] This taxon is now treated as a subspecies of the plumbeous sierra finch and has the trinomial name Geospizopsis unicolor geospizopsis.^[4] The genus name combines Geospiza, a genus introduced by John Gould in 1837, with the Ancient Greek opsis meaning "appearance".^[6]

The two species in the genus are:^[4]

Male	Female	Common Name	Scientific name	Distribution
		Plumbeous sierra finch	Geospizopsis unicolor	Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, and Venezuela.
		Ash-breasted sierra finch	Geospizopsis plebejus	Argentina, Bolivia, Chile, Ecuador, and Peru.