What is "compsospiza"

Compsospiza is a genus of South American birds known as mountain finches (a name shared with several other species such as Poospiza caesar and Leucosticte). The two species were previously included in the genus Poospiza, but in 2009 the South American Classification Committee unanimously agreed to resurrect Compsospiza based on plumage, ecology, morphology and genetic evidence. They are restricted to shrubby woodland in the Andes of Bolivia and Argentina, and both have a grey and rufous plumage.