After Ambracia follows the Amphilochian Argos, founded by Alcmæon and his sons. According to Ephorus, Alcmæon, after the expedition of the Epigoni2864 against Thebes, upon the solicitation of Diomed, accompanied him in his invasion of Ætolia, and obtained joint possession of this country and of Acarnania. When Agamemnon invited them to come to the siege of Troy, Diomed went, but Alcmæon remained in Acarnania, founded Argos, and gave it the name Amphilochian, after his brother Amphilochus. On the same authority the river Inachus, which flows through the country and empties itself into the bay, received its name from the river in the Argive territory. Thucydides, however, says that Amphilochus himself, upon his return from Troy, dissatisfied with the state of things at Argos, passed over into Acarnania, and having succeeded to the dynasty of his brother, founded the city which is called after his name.