Passage 9.27.2
Ἔρωτα δὲ ἄνθρωποι μὲν οἱ πολλοὶ νεώτατον θεῶν εἶναι καὶ Ἀφροδίτης παῖδα ἥγηνται· Λύκιος δὲ Ὠλήν, ὃς καὶ τοὺς ὕμνους τοὺς ἀρχαιοτάτους ἐποίησεν Ἕλλησιν, οὗτος ὁ Ὠλὴν ἐν Εἰλειθυίας ὕμνῳ μητέρα Ἔρωτος τὴν Εἰλείθυιάν φησιν εἶναι. Ὠλῆνος δὲ ὕστερον Πάμφως τε ἔπη καὶ Ὀρφεὺς ἐποίησαν· καί σφισιν ἀμφοτέροις πεποιημένα ἐστὶν ἐς Ἔρωτα, ἵνα ἐπὶ τοῖς δρωμένοις Λυκομίδαι καὶ ταῦτα ᾄδωσιν· ἐγὼ δὲ ἐπελεξάμην ἀνδρὶ ἐς λόγους ἐλθὼν δᾳδουχοῦντι. καὶ τῶν μὲν οὐ πρόσω ποιήσομαι μνήμην· Ἡσίοδον δὲ ἢ τὸν Ἡσιόδῳ Θεογονίαν ἐσποιήσαντα οἶδα γράψαντα ὡς Χάος πρῶτον, ἐπὶ δὲ αὐτῷ Γῆ τε καὶ Τάρταρος καὶ Ἔρως γένοιτο·
Most people consider Eros to be the youngest of the gods and the son of Aphrodite; but Olen the Lycian, who composed the most ancient hymns sung by the Greeks, says in his hymn to Eileithyia that she was the mother of Eros. After Olen, Pamphos and Orpheus composed verses, and both writers have produced poetry about Eros, which the Lycomidae sing during their rites. I myself spoke with a torch-bearer about these matters; though I shall make no further mention of their conversation. As for Hesiod, or at least whoever composed the Theogony attributed to him, he wrote that Chaos first came into existence, and after Chaos arose Gaia, Tartarus, and Eros.