Passage 9.40.5
Λεβαδέων δὲ ἔχονται Χαιρωνεῖς. ἐκαλεῖτο δὲ ἡ πόλις καὶ τούτοις Ἄρνη τὸ ἀρχαῖον· θυγατέρα δὲ εἶναι λέγουσιν Αἰόλου τὴν Ἄρνην, ἀπὸ δὲ ταύτης κληθῆναι καὶ ἑτέραν ἐν Θεσσαλίᾳ πόλιν· τὸ δὲ νῦν τοῖς Χαιρωνεῦσιν ὄνομα γεγονέναι ἀπὸ Χαίρωνος, ὃν Ἀπόλλωνός φασιν εἶναι, μητέρα δὲ αὐτοῦ Θηρὼ τὴν Φύλαντος εἶναι. μαρτυρεῖ δὲ καὶ ὁ τὰ ἔπη τὰς μεγάλας Ἠοίας ποιήσας·
Next to the Lebadeians are the Chaeroneans. Their city was formerly called Arne. They say that this Arne was a daughter of Aeolus, and that another city in Thessaly was also named after her. The present name of the Chaeroneans, however, derives from Chaeron, who is said to be a son of Apollo and whose mother was Thero, daughter of Phylas. The poet who composed the epic poem, the Great Eoeae, also bears witness to this.