Δαυλιάς
From LSJ
ἀγαθοὶ δὲ ἐγένοντο διὰ τὸ φῦναι ἐξ ἀγαθῶν → they were virtuous because they were sprung from virtuous men, virtuous they were because they were sprung from men of virtue
English (LSJ)
ἡ,
A woman of Daulis, epith. of Procne, who was changed into the nightingale, Th.2.29 (Δαυλία κορώνη, Suid.); so her sister Philomela, changed into the swallow, was Δαυλίς, Plu.2.727d.