Passage 8.35.8
Τρικολώνων δέ ἐστιν ἐν δεξιᾷ πρῶτα μὲν ἀνάντης ὁδὸς ἐπὶ πηγὴν καλουμένους Κρουνούς· σταδίους δὲ ὡς τριάκοντα καταβάντι ἐκ Κρουνῶν τάφος ἐστὶ Καλλιστοῦς, χῶμα γῆς ὑψηλόν, δένδρα ἔχον πολλὰ μὲν τῶν ἀκάρπων, πολλὰ δὲ καὶ ἥμερα. ἐπὶ δὲ ἄκρῳ τῷ χώματι ἱερόν ἐστιν Ἀρτέμιδος ἐπίκλησιν Καλλίστης· δοκεῖν δέ μοι καὶ Πάμφως μαθών τι παρὰ Ἀρκάδων πρῶτος Ἄρτεμιν ἐν τοῖς ἔπεσιν ὠνόμασε Καλλίστην.
From Trikolonoi, on the right, the road at first ascends toward the spring called Krounoi ("Springs"). About thirty stades descent from Krounoi is the tomb of Kallisto, a lofty earthen mound covered with trees, many wild as well as many cultivated. On the summit of this mound there is a sanctuary of Artemis surnamed Kalliste ("Most Beautiful"). It seems to me that Pamphos, having learned something from the Arcadians, was the first who named Artemis "Kalliste" in his verses.