The curve-winged sabrewing (Pampa curvipennis) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae.

[4] In the revised classification to create monophyletic genera, the curve-winged sabrewing was moved to the resurrected genus Pampa by some taxonomic systems.

[5][2][6][7] BirdLife International's Handbook of the Birds of the World (HBW) retained the species in Campylopterus.

[3] The relation of the curve-winged sabrewing to other species and the number and identities of its subspecies also differ among taxonomic systems.

Their tail feathers are mostly dull metallic bluish green that becomes purplish black at the ends.

The female's crown is duller and its tail feathers have white, not dark violet, tips.

[9] The nominate subspecies of curve-winged sabrewing is found in southeastern Mexico from San Luis Potosí south to Veracruz and Oaxaca.

Subspecies P. excellens is found only in a small area of southeastern Mexico around the Sierra de los Tuxtlas in the states of Veracruz, Tabasco, and Chiapas.

[8][9] As is the case for feeding, most of the curve-winged sabrewing's breeding phenology has not been detailed separately from that of the wedge-tailed.

The species usually sings from dense vegetation, and its songs are complex and variable, usually including insect-like chips, squeaks, and squeals, followed by a series of excited warbled or gurgling notes.

[8][9] The IUCN follows HBW taxonomy and so does not assess the curve-winged sabrewing separately from the three-subspecies Campylopterus curvipennis wedge-tailed.