Nepa Linnaeus, 1758: 440. Type species by subsequent designation (Latreille, 1810: 434): Nepa cinerea Linnaeus, 1758.
Hepa Geoffroy, 1762: 411 (placed on the Official Index, Opinion 1754/1994). Type species by subsequent designation (China, 1941a: 130): Nepa cinerea Linnaeus, 1758.
Neparia Rafinesque, 1815: 120. Unnecessary new name for Nepa Linnaeus, 1758.