Gnathium Kirby, 1818

Gnathium californicum (Wickham, 1905)

Gnathium caviceps MacSwain, 1952

Gnathium eremicola MacSwain, 1952

Gnathium francilloni Kirby, 1818

Gnathium longicolle LeConte, 1858

Gnathium martini MacSwain, 1952

Gnathium minimum (Say, 1823)

Gnathium nannulum MacSwain, 1952

Gnathium nitidum Horn, 1870

Gnathium obscurum MacSwain, 1952

Gnathium politum Dillon, 1952

Gnathium texanum Horn, 1870