Passage 5.18.8
Μέλανα δὲ καὶ τὸν σὺν αὐτῷ στρατὸν κατὰ τὰ προειρημένα μοι καὶ ἐν τῇ Κορινθίᾳ συγγραφῇ οὐκ ἤθελεν Ἀλήτης συνοίκους δέξασθαι, γεγονός οἱ μάντευμα ἐκ Δελφῶν ὑφορώμενος, ἐς ὃ θεραπείᾳ τε τῇ πάσῃ χρώμενον καὶ Μέλανα καὶ ὁπότε ἀπελασθείη σὺν δεήσει ἐπανιόντα αὖθις ἐδέξατο καὶ ἄκων Ἀλήτης. τοῦτο τὸ στρατιωτικὸν τεκμαίροιτο ἄν τις τοὺς ἐπὶ τῇ λάρνακι εἰργασμένους εἶναι.
According to what I have already mentioned also in my description of Corinth, Aletes was at first unwilling to accept Melas and his army as fellow settlers, suspecting a prophecy given to him from Delphi. Thus, only after Melas had applied every sort of persuasion and entreaty, and after he had been driven away and returned again in supplication, did Aletes accept him, though reluctantly. These soldiers, one might reasonably suppose, are the same as those depicted on the chest.