Passage 9.19.4
ἑξῆς δὲ πόλεων ἐρείπιά ἐστιν Ἅρματος καὶ Μυκαλησσοῦ· καὶ τῇ μὲν τὸ ὄνομα ἐγένετο ἀφανισθέντος, ὡς οἱ Ταναγραῖοί φασιν, ἐνταῦθα Ἀμφιαράῳ τοῦ ἅρματος καὶ οὐχ ὅπου λέγουσιν οἱ Θηβαῖοι· Μυκαλησσὸν δὲ ὁμολογοῦσιν ὀνομασθῆναι, διότι ἡ βοῦς ἐνταῦθα ἐμυκήσατο ἡ Κάδμον καὶ τὸν σὺν αὐτῷ στρατὸν ἄγουσα ἐς Θήβας. ὅντινα δὲ τρόπον ἐγένετο ἡ Μυκαλησσὸς ἀνάστατος, τὰ ἐς Ἀθηναίους ἔχοντα ἐδήλωσέ μοι τοῦ λόγου.
Next are the ruins of the cities Harma and Mykalessos. Harma, according to the Tanagraeans, was named from the chariot ("harma") of Amphiaraos, which vanished at this place, rather than where the Thebans claim it occurred. It is generally agreed that Mykalessos acquired its name because here the cow guiding Kadmos and his army towards Thebes lowed. How Mykalessos came to devastation, involving events concerning the Athenians, I have already related in my account.