The father of Argus Panoptes, the guardian of Io, who is therefore called Arestorides. (Apollod. ii. 1. § 3; Apollon. Rhod. i. 112; Ov. Met. i. 624.) According to Pausanias (ii. 16. § 3), Arestor was the husband of Mycene, the daughter of Inachus, from whom the town of Mycenae derived its name.