In Greek mythology, Dioplethes was a Phthian prince as son of King Myrmidon and possibly Peisidice (daughter of Aeolus), thus brother to Antiphus, Actor, [1] Erysichthon, [2] [3] Eupolemeia [4] [5] and Hiscilla. [6] In some accounts, he was the father of Perieres, King of Messenia. [7]