Agelaioides Cassin, 1866 (original description)
Aglyptus Leconte, 1866 accepted as Aglyptinus Cockerell, 1906 (original description)
Anamesus Leconte, 1866 accepted as Aplastus Leconte, 1859 (original description)
Anogdus Leconte, 1866 (original description)
Anomphalus Meek & Worthen, 1866 † (original description)
Aploaspis Cope, 1866 (original description)
Asyndesmus Coues, 1866 accepted as Melanerpes Swainson in Richardson, 1832 (original description)
Cachryx Cope, 1866 (original description)
Callothrus Cassin, 1866 (original description)
Colostethus Cope, 1866 (original description)
Cyanothrus Cassin, 1866 (original description)
Dives Cassin, 1866 (original description)
Dystaxia Leconte, 1866 (original description)
Erythropsar Cassin, 1866 (original description)
Euphagus Cassin, 1866 (original description)
Fustiger Leconte, 1866 (original description)
Holoquiscalus Cassin, 1867 (original description)
Idiopsar Cassin, 1867 (original description)
Macroagelaius Cassin, 1866 (original description)
Megaquiscalus Cassin, 1867 (original description)
Mesopeltis Cope, 1867 (original description)
Micrathene Coues, 1866 (original description)
Microdoma Meek & Worthen, 1866 † (original description)
Mycotrupes Leconte, 1866 (original description)
Nematocrinus Meek & Worthen, 1866 (original description)
Podasocys Coues, 1866 accepted as Charadrius Linnaeus, 1758 (original description)
Pseudoprion Coues, 1866 accepted as Pachyptila Illiger, 1811 (original description)
Rhegnops Cope, 1866 (original description)
Rhogeessa Allen, 1866 (original description)
Rhogeëssa Allen, 1866 accepted as Rhogeessa Allen, 1866 (original description)
Sagmatias Cope, 1866 accepted as Lagenorhynchus Gray, 1846 (original description)
Stethon Leconte, 1866 (original description)
Stictocranius Leconte, 1866 (original description)
Triprion Cope, 1866 (original description)
Xenorhipis Leconte, 1866 (original description)