Exodus 8:24
And Jehovah did so; and there came grievous swarms of flies into the house of Pharaoh, and into his servants houses: and in all the land of Egypt the land was corrupted by reason of the swarms of flies.
Psalm 78:45
He sent among them swarms of flies, which devoured them; And frogs, which destroyed them.
Psalm 105:31
He spake, and there came swarms of flies, And lice in all their borders.
Exodus 8:21
Else, if thou wilt not let my people go, behold, I will send swarms of flies upon thee, and upon they servants, and upon thy people, and into thy houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground whereon they are.