Passage 9.20.1
ἔστι δὲ τῆς Ταναγραίας ἐπὶ θαλάσσῃ καλούμενον Δήλιον· ἐν δὲ αὐτῷ καὶ Ἀρτέμιδος καὶ Λητοῦς ἐστιν ἀγάλματα. Ταναγραῖοι δὲ οἰκιστήν σφισι Ποίμανδρον γενέσθαι λέγουσι Χαιρησίλεω παῖδα τοῦ Ἰασίου τοῦ Ἐλευθῆρος, τὸν δʼ Ἀπόλλωνός τε καὶ Αἰθούσης εἶναι τῆς Ποσειδῶνος. Ποίμανδρον δὲ γυναῖκά φασιν ἀγαγέσθαι Τάναγραν θυγατέρα Αἰόλου· Κορίννῃ δέ ἐστιν ἐς αὐτὴν πεποιημένα Ἀσωποῦ παῖδα εἶναι.
On the seacoast of the Tanagran territory there lies a place called Delium; within it are statues of Artemis and Leto. The Tanagrans claim that their founder was Poimandros, the son of Chairesilaos, who himself was the son of Iasios, the son of Eleuther; this Eleuther, they say, was the son of Apollo and Aithousa, the daughter of Poseidon. They add that Poimandros took as his wife Tanagra, daughter of Aiolos. But according to Corinna's poem about her, she was a daughter of Asopos.