''Eupetomena'' is a genus in the hummingbird family Trochilidae. It contains two species which are both found in eastern South America.

Taxonomy

The genus ''Eupetomena'' was introduced in 1853 by the English ornithologist John Gould to accommodate a single species, the

swallow-tailed hummingbird The swallow-tailed hummingbird (''Eupetomena macroura'') is a species in the hummingbird family (Trochilidae), found mainly in east-central South America. Most authorities place it in the genus '' Eupetomena'', although some place it in '' Campyl ...

which therefore becomes the type species. The genus name combines the Ancient Greek ''eu'' ( εὐ-) meaning "good" and the neuter participle ''petomena'' (πετόμενα) meaning "always on the wing" or "flying" (from ''petomai'', πέτομαι, "to fly"). Literally, it can mean "the one that flies well, good flyer" (εὐπετόμενα). The genus contains two species: *

Swallow-tailed hummingbird The swallow-tailed hummingbird (''Eupetomena macroura'') is a species in the hummingbird family (Trochilidae), found mainly in east-central South America. Most authorities place it in the genus '' Eupetomena'', although some place it in '' Campyl ...

, ''Eupetomena macroura'' *

Sombre hummingbird The sombre hummingbird (''Eupetomena cirrochloris'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Brazil.HBW and BirdLife International (2021) Handbook of the Birds of the World an ...

, ''Eupetomena cirrochloris'' The sombre hummingbird was formerly placed in the genus ''Aphantochroa'' but based primarily on 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, ''Aphantochroa'' has been merged into ''Eupetomena''.

References

Eupetomena Bird genera {{hummingbird-stub