Trigonopeltastes Burmeister & Schaum, 1840,

as Trichius (Trigonopeltastes) [26 species and 1 additional subspecies].

Type species Scarabaeus delta Forster, 1771, by subsequent designation of Chevrolat (1848).

Status revised to Trigonopeltastes by Burmeister (1842).

Archimedius Kirby, 1827, as Trichius (Archimedii) . Type species Scarabaeus delta Forster, 1771, by original designation. Nomen oblitum and synonym by Howden (1968).

Euclidius Kirby, 1827, as Trichius (Euclidii) . Type species Trichius triangulus Kirby, 1819, by original designation. Nomen oblitum and synonym by Howden (1968).

Roplisa Casey, 1909 . Type species Roplisa floridana Casey, 1909, by original designation. Synonymy by Woodruff (1960).