Genus Nerax Hull

Nerax Hull, 1962 (2): 476. Type species, Asilus aestuans Linnaeus, 1758 (orig. des.). Ref.: Papavero, 2009: 9 (cat.).

Erax Scopoli of authors (part), misident.

Efferia Coquillett of authors, misident.

Erax, aestuans -group of Hine, 1919: 120.

Efferia, aestuans- group of Wilcox, 1966: 94.