Psalm 78:45
He sent among them swarms of flies, which devoured them, and frogs, which destroyed them.
Exodus 8:21-24
Or else, if you will not let my people go, behold, I will send swarms of flies on you and your servants and your people, and into your houses. And the houses of the Egyptians shall be filled with swarms of flies, and also the ground on which they stand.
Psalm 105:30-31
Their land swarmed with frogs, even in the chambers of their kings.
Exodus 8:2-15
But if you refuse to let them go, behold, I will plague all your country with frogs.
Revelation 16:3
The second angel poured out his bowl into the sea, and it became like the blood of a corpse, and every living thing died that was in the sea.