Chlorospingus, the bush-tanagers, are a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of perching birds traditionally placed in the tanager

Tanager

The tanagers comprise the bird family Thraupidae, in the order Passeriformes. The family has an American distribution.There were traditionally about 240 species of tanagers, but the taxonomic treatment of this family's members is currently in a state of flux...

 family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 (Thraupidae). This seems in error according to more recent studies, which suggest that they are closely related to the genus Arremonops

Arremonops

Arremonops is a genus of neotropical birds in the Emberizidae family. All species are found in Central America, Mexico, and/or northern South America...

in the Emberizidae

Emberizidae

The Emberizidae are a large family of passerine birds. They are seed-eating birds with a distinctively shaped bill.In Europe, most species are called buntings. In North America, most of the species in this family are known as sparrows, but these birds are not closely related to the sparrows, the...

 (buntings and American sparrows). Considering this, bush-tanager is arguably better replaced by chlorospingus, but this has yet to be proposed.

It contains the following species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

:

• Common Bush-tanager
  Common Bush-Tanager
  The Common Bush-tanager is a small passerine bird. It is a resident breeder in the highlands from central Mexico south to Bolivia and northwest Argentina. C. ophthalmicus in the loose sense is a notorious cryptic species complex, and several of the up to 25 subspecies recognized in recent times...
  
   or Brown-headed Bush-tanager, Chlorospingus ophthalmicus
  • Dusky-headed Bush-tanager, Chlorospingus (ophthalmicus) postocularis
  • White-fronted Bush-tanager, Chlorospingus (ophthalmicus) albifrons
  • Dwight's Bush-tanager, Chlorospingus (ophthalmicus) dwighti
  • Wetmore's Bush-tanager, Chlorospingus (ophthalmicus) wetmorei
• Tacarcuna Bush-tanager
  Tacarcuna Bush-tanager
  The Tacarcuna Bush-tanager is a species of bird in the Thraupidae family.It is found in Colombia and Panama.Its natural habitat is subtropical or tropical moist montanes.-References:...
  
  , Chlorospingus tacarcunae
• Pirre Bush-tanager
  Pirre Bush-tanager
  The Pirre Bush-tanager is a species of bird in the Thraupidae family.It is endemic to Panama.Its natural habitat is subtropical or tropical moist montanes.-References:...
  
  , Chlorospingus inornatus
• Dusky Bush-tanager
  Dusky Bush-tanager
  The Dusky Bush-tanager is a species of bird traditionally placed in the Thraupidae family, but perhaps closer to Arremonops in the Emberizidae....
  
  , Chlorospingus semifuscus
• Sooty-capped Bush-tanager
  Sooty-capped Bush-Tanager
  The Sooty-capped Bush-Tanager, Chlorospingus pileatus, is a small passerine bird. This tanager is an endemic resident breeder in the highlands of Costa Rica and western Panama....
  
  , Chlorospingus pileatus
• Yellow-whiskered Bush-tanager
  Yellow-whiskered Bush-tanager
  The Yellow-whiskered Bush-tanager or Short-billed Bush-tanager is a species of bird in the Thraupidae family. It is found in Bolivia, Colombia, Ecuador, and Peru....
  
   or Short-billed Bush-tanager, Chlorospingus parvirostris
• Yellow-throated Bush-tanager
  Yellow-throated Bush-tanager
  The Yellow-throated Bush-tanager is a species of bird in the Thraupidae family. It is found in Bolivia, Colombia, Ecuador, Panama, and Peru....
  
  , Chlorospingus flavigularis
• Yellow-green Bush-tanager
  Yellow-green Bush-tanager
  The Yellow-green Bush-tanager is a species of bird in the Thraupidae family.It is found in Colombia and Ecuador....
  
  , Chlorospingus flavovirens
• Ashy-throated Bush-tanager
  Ashy-throated Bush-tanager
  The Ashy-throated Bush-tanager is a species of bird in the Thraupidae family.It is found in Colombia, Costa Rica, Ecuador, Panama, Peru, and Venezuela....
  
  , Chlorospingus canigularis

The taxonomy

Taxonomy

Taxonomy is the science of identifying and naming species, and arranging them into a classification. The field of taxonomy, sometimes referred to as "biological taxonomy", revolves around the description and use of taxonomic units, known as taxa...

 and systematics

Systematics

Biological systematics is the study of the diversification of terrestrial life, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees...

 of the "Common Bush-tanager" are under review; it appears to be a superspecies

Superspecies

A superspecies is a group of at least two more or less distinctive species with approximately parapatric distributions. Not all species complexes, whether cryptices or ring species are superspecies, and vice versa, but many are...

or even a complex of superspecies.