'Dog flies' in the Bible

For, if thou do not let my people go, behold, I will send dog-flies upon thee, and upon thy bondmen, and upon thy people, and into thy houses; and the houses of the Egyptians shall be full of dog-flies, and also the ground on which they are.

And I will distinguish in that day the land of Goshen, in which my people dwell, that no dog-flies shall be there; that thou mayest know that I Jehovah am in the midst of the land.

And Jehovah did so; and there came dog-flies in a multitude into the house of Pharaoh, and into the houses of his bondmen; and throughout the land of Egypt, the land was corrupted by the dog-flies.

And Moses said, Behold, I go out from thee, and will intreat Jehovah; and the dog-flies will depart from Pharaoh, from his bondmen, and from his people, to-morrow; only let not Pharaoh deal deceitfully any more in not letting the people go to sacrifice to Jehovah.

And Jehovah did according to the word of Moses; and he removed the dog-flies from Pharaoh, from his bondmen, and from his people; there remained not one.

He sent dog-flies among them, which devoured them, and frogs, which destroyed them;

He spoke, and there came dog-flies, and gnats in all their borders.