Exodus 8:21
Else, if you will not let my people go, behold, I will send swarms of flies on you, and on your servants, and on your people, and into your houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground whereon they are.
Psalm 78:45
He sent among them swarms of flies, which devoured them; and frogs, which destroyed them.
Psalm 105:31
He spoke, and swarms of flies came, and lice in all their borders.
Isaiah 7:18
It will happen in that day that Yahweh will whistle for the fly that is in the uttermost part of the rivers of Egypt, and for the bee that is in the land of Assyria.