Io
- a daughter of Inachus, king of Argos, beloved by Jupiter, and changed, through fear of Juno, into a cow; afterwards worshipped as an Egyptian deity, under the name of Isis. —Form Io, Ov. H. 14, 85; Prop. 2, 28 (3, 24), 17; Ov. M. 1, 588 sq.; Val. Fl. 4, 351 sq.; Hyg. Fab. 145.—Gen. Ius, Nemes. Cyn. 31.—Acc. Io, Ov. M. 1, 588; Am. 2, 19, 29.—Abl. Io, Prop. 2, 13, 19.—Form Ion; dat. Ioni, Plaut. Aul. 3, 6, 20 (556).—Acc. Ionem, Serv. Verg. A. 3, 153.
➳ formes Ion Ov. Am. 2, 2, 45 ; dat. Ioni Pl. Aul. 556 ; acc. Ionem Serv. Georg. 3, 153 ou Io Ov. M. 1, 584 ; abl. Io Prop. 2, 30, 29.
(Ἰώ). The beautiful daughter of Inachus, and the first priestess of Heré at Argos. As Zeus loved her, she was changed by the jealousy of Heré into a white heifer, and Argus of the hundred eyes was appointed to watch her. When Hermes, at the command of Zeus, had killed Argus, Heré maddened the heifer by sending a gad-fly which perpetually pursued her. Io thus wandered through the continents of Europe and Asia, by land and by sea. Each of the different straits she swam across was named after her Bosporus, or Ox-ford. At last in Egypt she recovered her original shape, and bore Epaphus to Zeus. Libya, the daughter of Epaphus, became by Poseidon the mother of Belus, who in turn was father of Aegyptus, Danaus, Cepheus, and Phineus. The Greek legend of Io's going to Egypt is probably to be explained by her having been identified with the Egyptian goddess Isis, who is always represented with cow's horns. Io (“the wanderer”) is generally explained as a moon-goddess wandering in the starry heavens, symbolized by Argus of the hundred eyes; her transformation into a horned heifer representing the crescent moon.
- Inachus, or Piren: Apollod. 2.1.1
- goes to Egypt: Apollod. 2.1.3
- seduced by Zeus: Apollod. 2.1.1
- turned into a white cow: Apollod. 2.1.3
- her wanderings: Apollod. 2.1.3
- comes to Egypt and gives birth to Epaphus: Apollod. 2.1.3
- finds Epaphus at Byblus: Apollod. 2.1.3
- married to Telegonus: Apollod. 2.1.3
- called Isis by the Egyptians: Apollod. 2.1.3
- daughter of Inachus, loved by Zeus and changed into cow: Paus. 2.16.1, Paus. 3.18.13
- statue of: Paus. 1.25.1
- daughter of Inachus, her abduction: Hdt. 1.1, Hdt. 1.5
- depicted in the form of a cow: Hdt. 2.41