EN
Until now, Thyridates was considered an American genus. In this work seven African species of Bittacus are transferred toThyridates: T. stanleyi (BYERS, 1968), T. erythrostigma (BYERS, 1975), T. weelei (ESBEN-PETERSEN, 1913), T. nebulosus (KLUG, 1838), T. testaceous (KLUG, 1838), T. oreinus (NAVÁS, 1914), and T. chevalieri (NAVÁS, 1908). A new species of Thyridates from the late Paleocene of Argentina is described. The geographic relationships between species of the genus suggest the idea of a Gondwanan origin of this group before separation of Africa and South America in the Lower Cretaceous.