The son of Heracles and Phialo, the daughter of Alcimedon. When Alcimedon realized that she had a child, he exposed her to perish on the mountain, and with her the baby boy she had borne, whom the Arcadians call Aechmagoras. On being exposed the babe began to cry, and a jay heard him wailing and began to imitate his cries.
It happened that Heracles, passing along that road, heard the jay, and, thinking that the crying was that of a baby and not of a bird, turned straight to the voice. Recognizing Phialo he loosed her from her bonds and saved the baby. The spring near by is named Cissa (Jay) after the bird.
- Pausanias. Description of Greece viii, 12.3-4.