Parent: Trochilidae (Hummingbirds)

└─ Chaetocercus

└─── Chaetocercus astreans (Santa marta woodstar)

└─── Chaetocercus berlepschi (Esmeraldas woodstar)

└─── Chaetocercus bombus (Little woodstar)

└─── Chaetocercus heliodor (Gorgeted woodstar)

└─── Chaetocercus jourdanii (Rufous-shafted woodstar)

└─── Chaetocercus mulsanti