In Greek mythology, Ialmenus or Ialmenos (/aɪˈælmɪnəs/; Ancient Greek: Ἰάλμενος) was a son of Ares[1] and Astyoche, and twin brother of Ascalaphus.
[2] Together with his brother he sailed with the Argonauts,[1] among the suitors of Helen,[3] and led the Orchomenian contingent in the Trojan War.
[4] Unlike Ascalaphus, Ialmenus survived the war.
He was said to have ended up in Colchis, where he founded a colony, the inhabitants of which were later referred to as the "Achaeans of Pontus".
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