Passage 1.38.3
γενομένης δὲ Ἐλευσινίοις μάχης πρὸς Ἀθηναίους ἀπέθανε μὲν Ἐρεχθεὺς Ἀθηναίων βασιλεύς, ἀπέθανε δὲ Ἰμμάραδος Εὐμόλπου· καταλύονται δὲ ἐπὶ τοῖσδε τὸν πόλεμον, ὡς Ἐλευσινίους ἐς τὰ ἄλλα Ἀθηναίων κατηκόους ὄντας ἰδίᾳ τελεῖν τὴν τελετήν. τὰ δὲ ἱερὰ τοῖν θεοῖν Εὔμολπος καὶ αἱ θυγατέρες δρῶσιν αἱ Κελεοῦ, καλοῦσι δὲ σφᾶς Πάμφως τε κατὰ ταὐτὰ καὶ Ὅμηρος Διογένειαν καὶ Παμμερόπην καὶ τρίτην Σαισάραν· τελευτήσαντος δὲ Εὐμόλπου Κήρυξ νεώτερος λείπεται τῶν παίδων, ὃν αὐτοὶ Κήρυκες θυγατρὸς Κέκροπος Ἀγλαύρου καὶ Ἑρμοῦ παῖδα εἶναι λέγουσιν, ἀλλʼ οὐκ Εὐμόλπου.
When the Eleusinians engaged in battle with the Athenians, Erechtheus, king of the Athenians, was slain, and Immaradus, son of Eumolpus, also fell. Following these events they made peace under conditions whereby the Eleusinians, while in all other matters subject to Athens, would celebrate their mysteries independently. Concerning the sacred rites of the two goddesses, these were conducted by Eumolpus and the daughters of Celeus, whom both Pamphos and Homer alike call Diogeneia, Pammerope, and the third, Saesara. After the death of Eumolpus, his youngest son, Ceryx, was left behind, though the Ceryces themselves assert that he was not a son of Eumolpus but rather the child of Hermes and Aglauros, daughter of Cecrops.