Note 1217 — Chapter X · ORPHIC MYSTERIES.
Reading edition
Plut. de Ei IX. Διόνυσον δὲ καὶ Ζαγρέα καὶ Νυκτέλιον καὶ Ἰσοδαίτην αὐτὸν ὀνομάζουσι. Taking the three ritual titles in conjunction it seems almost certain that Ἰσοδαίτης refers to the ὠμόφαγοι δαῖτες of the Zagreus ritual shared alike by all mystics.