Ariaethus or Araethus (Ancient Greek: Ἀρίαιθος, Ariaithos or Araithos) was a writer from the ancient Greek city-state of Tegea, whose work survives in fragments.
The most notable known work by this author was Arkadika, which focused on local myths in Arcadia.
[1][2][3] This also includes myths dealing with local affairs in Tegea.
[4] Madeleine Jost and James Roy propose the Hellenistic period to be the most likely due to the inclusion of Aeneas in one of the fragments.
[5] It is uncertain whether his work included later Arcadian history as well as the mythical past.