This hummingbird uses humid forest and adjacent scrubby transitions. An Argentine biodiversity account describes distinct blue markings in males and females.
The male is green with violet-blue extending from behind the eye over the head, throat, and chest, plus a small white chin mark. The female is green above and grayish white below, with fine markings on throat and chest.
The Argentine account associates it with humid forest and transitions from forest to scrub.
An extinction-risk assessment has not been added yet.