This small hummingbird lives in western Mexico. Males are green with a deeply forked tail; females are paler below and have a shallower tail fork. A western Mexico study that included this species described an open-cup nest made from plant material and spider web.
Males have green upperparts and underparts, a mostly red bill, and a strongly forked tail. Females are pale below, have a less deeply forked tail, and show a white line behind the eye.
A western Mexico study found that three resident hummingbird species, including this one, favored nesting in semi-deciduous forest. Their nests were open cups made with plant material bound by spider web.
An extinction-risk assessment has not been added yet.