(Ἀχλύς). The darkness that in Homer comes upon the eyes of mortals (e.g. Il. 5,696) or those whom the gods have blinded (e.g. Il. 20,324). It is depicted on the shield of Hercules in a female personification with hideous baroque-like features as leader of the team of horses of Nyx (Hes. asp. 264), in the late Orph. A. 341. The Latin correspondence to her is Caligo ‘dark fog’, Mother of Chaos and Nox in the cosmogonical myth, of unknown, but probably Greek origin (Hyg. Fab. praef. 1).
F. Queyrel, s. v. A., LIMC 1.1, 214
A. Shapiro, Personi…