The flame-rumped sapphire (Hylocharis pyropygia) is a doubtfully valid species of hummingbird in the family Trochilidae known only from Brazil. Today few authorities accept it as valid, instead believing it represents a hybrid between Chlorostilbon lucidus and Hylocharis cyanus.
References BirdLife International 2004. 2006 IUCN Red List of Threatened Species. Downloaded on 10 July 2007.