(Pipridae; Ϯ Eastern Striped Manakin M. regulus) Gr. μαχαιρα makhaira  knife, dagger; -πτερος -pteros  -winged  < πτερον pteron  wing; "72. MACHÆROPTERUS, Schiff.  --  155. strigilatus, Pr. Max. Wied.  --  156. striolatus, Bp.  --  157. pyrocephalus, Sclat." (Bonaparte 1854); "Males possess modified secondaries, the tips of these feathers being thickened and enlarged  ...  whilst the tail feathers also have thickened rachi" (Kirwan & Green 2011).
Synon. Allocotopterus.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 22 October 2018).