(Νυκτεύς/Nukteús). Son of Hyrieus and the nymph Clonia, and hence, through his father, the grandson of Poseidon (Apollod. 3,111). Alternatively, Hyginus says he is the son of Poseidon and Celaeno [1] (Hyg. Poet. Astr. 2,21). N. and his brother Lycus [6] fled from Hyria to Thebes after killing Phlegyas. In Thebes, N. was king and guardian of his grandson Labdacus, whom Polydorus fathered with N.'s daughter Nycteis (Paus. 2,6,2).
When N.'s second daughter, Antiope [1], was impregnated by Zeus and fled to Sicyon and married its king, Epopeus, N. committed …