Epaphus
Ἔπαφος
The son of Zeus that Io bore at the end of her wanderings. His name means "touch."
He is the son Io bore once she was finally human again, after being driven to Egypt as a cow. Aeschylus begins by unpacking the name — a child conceived by nothing more than Zeus laying on a hand (epaphe).
He is said to have become king of Egypt and founded Memphis, and the Greeks identified him with the Egyptian bull god Apis (Herodotus).
In Ovid he appears as the boy who taunts Phaethon — "only your mother's word says you're the sun's son." That one remark drove Phaethon all the way to the chariot of the sun.
His daughter Libya left her name on Africa. The grandchildren of a persecuted cow carved their names into two continents.
SourcesAeschylus, Prometheus Bound