Other Scientific Names
Popelairia langsdorffi [BirdLife International (2004)], Popelairia langsdorffi [Sibley and Monroe (1990, 1993)], Popelairia langsdorffi [Stotz et al. (1996)]
Other Names (World)
Black-bellied Thorntail, Black-breasted Thorntail, Langsdorff's Thorntail
Black-bellied Thorntail (Discosura langsdorffi) [XC83821]
by GABRIEL LEITE from Manu Wildlife Centre, Madre de Dios, Peru (call)
Black-bellied Thorntail (Discosura langsdorffi) [XC482828]
by id from Novo Progresso, State of Par\u00e1, Brazil (song)
Subspecies
Often placed in genus Popelairia, along with Wire-crested Thorntail (Discosura popelairii), Coppery Thorntail (Discosura letitiae) and Green Thorntail (Discosura conversii). Genus closely related to Lophornis.
The following 2 subspecies are recognised:
melanosternon (Gould, 1868) - South-eastern Colombia and southern Venezuela to eastern Ecuador, eastern Peru and western Brazil (R Madeira, R Guaporé, R Negro, western Mato Grosso).
langsdorffi (Temminck, 1821) - Eastern Brazil (Bahia, Espírito Santo, Rio de Janeiro).