Tomarus Erichson, 1847a
(not Tomarus LeConte, 1861) [20 species].
Type species Tomarus maimon Erichson, 1847, by monotypy.
Ligyrus (Grylius) Casey, 1915 . Type species Ligyrus laevicollis Bates, 1888, by subsequent designation of López-García & Deloya (2022). Synonymy by Saylor (1946a).