Iphis was one of the daughters of Thespius, King of Thespiae, Boeotia and Megamede, daughter of Arneus. She was one of the forty-nine of his fifty daughters to sleep with Heracles while he was in Thespiae. She would bare him Keleustanor.
Spouse & Lovers
Heracles (lover for one night)
"by Iphis he [Herakles] had Keleustanor"
- Apollod. Biblioteca 2.7.8