''Poecilostreptus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of birds in the tanager family

Thraupidae The tanagers (singular ) comprise the bird family (biology), family Thraupidae, in the order Passeriformes. The family has a Neotropical distribution and is the second-largest family of birds. It represents about 4% of all avian species and 12 ...

Taxonomy and species list

These species were formerly placed in the genus '' Tangara''. A

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

study published in 2014 found that ''Tangara'' was

polyphyletic A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies ...

. In the rearrangement to create

monophyletic In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent co ...

genera, the new genus, ''Poecilostreptus'', was erected with the

grey-and-gold tanager The grey-and-gold tanager (''Poecilostreptus palmeri'') is a species of bird in the family Thraupidae. It is found in Colombia, Ecuador, and Panama (Serranía del Darién and western Andean slope of Colombia and Ecuador). Its natural habitats are ...

as the

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

. The genus name combines the

Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...

ποικίλος/''poikílo'' meaning "spotted" or "dappled" and στρεπτός/''streptós'' meaning "collar". The genus contains the two species: *

Azure-rumped tanager The azure-rumped tanager or Cabanis's tanager (''Poecilostreptus cabanisi'') is a species of bird in the family Thraupidae. It is a local resident in humid broadleaf forests and adjacent plantations of the Pacific slope of western Guatemala and ...

, ''Poecilostreptus cabanisi'' *

Grey-and-gold tanager The grey-and-gold tanager (''Poecilostreptus palmeri'') is a species of bird in the family Thraupidae. It is found in Colombia, Ecuador, and Panama (Serranía del Darién and western Andean slope of Colombia and Ecuador). Its natural habitats are ...

, ''Poecilostreptus palmeri''

References

Poecilostreptus Bird genera Taxa named by Kevin J. Burns (ornithologist) Taxa named by Philip Unitt Taxa named by Nicholas A. Mason {{Thraupidae-stub