Dea Dia

Dea Dia (Latin: "Goddess of Daylight", or "Bright Goddess") was a goddess of fertility and growth in ancient Roman religion. She was sometimes identified with Ceres, and sometimes with her Greek equivalent Demeter.

She was worshiped during Ambarvalia, a festival to Ceres. Every May, her priests, the Fratres Arvales, held a three-day festival in her honor.