Megarrhamphus Bergroth, 1891b: 214. New name for Megarhynchus Laporte, 1833.
Megarhynchus Laporte, 1833: 65 (replaced as junior homonym of Megarynchus Thunberg, 1824, Aves; see note). Type species by monotypy: Lygaeus hastatus Fabricius, 1803.
Megarhincus: Spinola, 1837: 290. Incorrect spelling.
Megarhamphus Heine, 1860: 338 (nomen oblitum). New name for Megarhynchus Laporte, 1833.