Passage 1.43.4
ἐντεῦθεν πρὸς τὸ Ἀλκάθου βαδίζουσιν ἡρῷον, ᾧ Μεγαρεῖς ἐς γραμμάτων φυλακὴν ἐχρῶντο ἐπʼ ἐμοῦ, μνῆμα ἔλεγον τὸ μὲν Πυργοῦς εἶναι γυναικὸς Ἀλκάθου πρὶν ἢ τὴν Μεγαρέως αὐτὸν λαβεῖν Εὐαίχμην, τὸ δὲ Ἰφινόης Ἀλκάθου θυγατρός· ἀποθανεῖν δὲ αὐτήν φασιν ἔτι παρθένον. καθέστηκε δὲ ταῖς κόραις χοὰς πρὸς τὸ τῆς Ἰφινόης μνῆμα προσφέρειν πρὸ γάμου καὶ ἀπάρχεσθαι τῶν τριχῶν, καθὰ καὶ τῇ Ἑκαέργῃ καὶ Ὤπιδι αἱ θυγατέρες ποτὲ ἀπεκείροντο αἱ Δηλίων.
From here, as one goes toward the sanctuary of Alcathous is a hero-shrine, which the Megarians used as a record-house during my time. They said it was a tomb, partly for Pyrgo, Alcathous' wife before he married Euaichme, the daughter of Megareus, and partly for his daughter Iphinoe, who, they say, died while still a maiden. It is customary for young girls to pour libations at the tomb of Iphinoe before their wedding and to offer their hair as an initial dedication, just as the girls of Delos once cut their locks in honor of Hekaerge and Opis.