This tiny hummingbird is about 9–10 cm long. Males have a blue-violet throat and long forked tail; females have a shorter tail and cinnamon underparts. It visits flowers in Mexican highlands.
About 9–10 cm long. Males have a blue to violet throat, white chest, green belly, white rump patches and a long forked tail. Females have a shorter tail and cinnamon underparts.
In June 2010 in the Sierra Juárez, Oaxaca, one female was observed for four days while feeding at ten plant species. This single-bird, short-period observation does not establish preferred flowers or regional diet.
An extinction-risk assessment has not been added yet.