A son of Pelops and father of Periphetes. After having murdered Iphitus, he fled from Elis to Mycenae, where he was purified by Eurystheus, who employed him to inform Heracles of the labours he had to perform. (Hom. Il. xv. 639; Apollod. i. 5. § 1.) Euripides in his "Heracleidae" makes him the herald of Eurystheus.