A 19th-century account by Gould records specimens from Peru's Cuzco region and flights between flowers with apparent aerial insect-catching. The male description has a blue crown and long green-and-purple throat ornament.
In Gould's historical male description, the crown is blue with a black streak, and the long throat ornament changes from green to reddish purple. Outer tail feathers are white, while inner feathers are bronze.
A note by Whitely, quoted by Gould, describes a flight between flowers followed by a vertical stop with the tail spread. The observer thought the bird was catching insects in the air.
An extinction-risk assessment has not been added yet.