This hummingbird occurs in the mountains of western Panama. Salvin's 1870 original description records a green-backed adult male with a red throat and white breast and belly; the AOS checklist lists forest-edge habitats.
Salvin's adult male has green upperparts, rufous sides of the head, a glossy red throat, and a white breast and central belly. The central tail feathers are dark with rufous edges.
The AOS checklist lists second-growth scrub, montane evergreen forest edges and secondary forest at 750–1,800 m.
An extinction-risk assessment has not been added yet.