Ἐποίησεν δὲ Κύριος οὕτως, καὶ παρεγένετο ἡ κυνόμυια πλῆθος εἰς τοὺς οἴκους Φαραὼ καὶ εἰς τοὺς οἴκους τῶν θεραπόντων αὐτοῦ καὶ εἰς πᾶσαν τὴν γῆν Αἰγύπτου, καὶ ἐξωλεθρεύθη ἡ γῆ ἀπὸ τῆς κυνομυίης.
Then the LORD did thus, and the dog-fly came in abundance into the houses of Pharao and into the houses of his servants and into all the land of Egypt, and the land was utterly destroyed by the dog-fly.
8:20
ויעשׂ יהוה כן ויבא ערב כבד ביתה פרעה ובית עבדיו ובכל־ארץ מצרים תשׁחת הארץ מפני הערב׃
Exodus 8:24 in Septuagint = Exodus 8:20 in the Hebrew Bible