Stephanos of Byzantium - Ethnika
Orestai: a Molossian ethnos. Hecataeus in the Europa. Theagenes in the Makedonika says that, when Orestes was released from his madness, he fled out of shame and came to this land with Hermione, and had a son, Orestes; from the time this son ruled they were called Orestai. But he himself, bitten by a viper, dies at a place in Arcadia called Oresteion. The feminine forms are also given as Orestis and Orestias, as Theagenes himself, and Dionysius, book 2 of the Gigantiad.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.