The scaled metaltail (Metallura aeneocauda) is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae.

[6] The nominate subspecies of scaled metaltail is found on the eastern slope of the Andes from the Cordillera Vilcabamba of southeastern Peru south into northwestern Bolivia's La Paz Department.

M. a. malagae is found in the vicinity of Inkachaka in central Bolivia's Cochabamba Department.

The species inhabits glades and edges of cloudforest and elfin forest and also rocky slopes with herbs and shrubs.

[6] The scaled metaltail is believed to be sedentary but some dispersal into páramo and lower montane forest is thought possible.

[1] It is "not at risk at present, due to its fairly wide distribution and its rather unspecialized ecology...[but] may be vulnerable in places because [of] regular grassland burning".