Curculionidae Latreille, 1802
Idiostethus brevipennis Casey, 1920
Idiostethus densicollis Casey, 1920
Idiostethus dispersus Casey, 1892
Idiostethus ellipsoideus Casey, T.L., 1892
Idiostethus humeralis Casey, 1920
Idiostethus illustris Casey, 1920
Idiostethus minutus Casey, 1920
Idiostethus nanulus Casey, 1920
Idiostethus ovulatus Casey, 1920
Idiostethus parvicollis Casey, 1920
Idiostethus proximus Casey, 1920
Idiostethus puncticollis Casey, 1920
Idiostethus rugicollis Casey, 1920
Idiostethus spiniger Casey, 1920
Idiostethus strigapunctus Ham., 1893
Idiostethus strigosicollis Casey, 1920
Idiostethus subcalvus (LeConte, 1878)
Idiostethus tubulatus (Say, 1831)
