Passage 4.1.7
ὡς δὲ ὁ Πανδίονος οὗτος ἦν Λύκος, δηλοῖ τὰ ἐπὶ τῇ εἰκόνι ἔπη τῇ Μεθάπου. μετεκόσμησε γὰρ καὶ Μέθαπος τῆς τελετῆς ἔστιν ἅ· ὁ δὲ Μέθαπος γένος μὲν ἦν Ἀθηναῖος, τελεστὴς δὲ καὶ ὀργίων καὶ παντοίων συνθέτης. οὗτος καὶ Θηβαίοις τῶν Καβείρων τὴν τελετὴν κατεστήσατο, ἀνέθηκε δὲ καὶ ἐς τὸ κλίσιον τὸ Λυκομιδῶν εἰκόνα ἔχουσαν ἐπίγραμμα ἄλλα τε λέγον καὶ ὅσα ἡμῖν ἐς πίστιν συντελεῖ τοῦ λόγου·
That this Pandion was actually Lycus is made clear by the verses of Methapus placed beneath the statue. For Methapus also reformed certain elements of the rite; Methapus himself was an Athenian by birth and a founder of various initiatory rites and ceremonies. It was he who established the mystery rite of the Cabeiri among the Thebans, and he dedicated a statue in the hall of the Lycomidae with an inscription containing various statements, including those which confirm our account.