Exodus 8:21
For if thou sendest not my people forth, behold me sending upon thee and upon thy servants, and upon thy people and upon thy houses, the gad-fly: and the houses of the Egyptians shall be filled with the gad-fly, and also the land which they are upon it
Psalm 78:45
He will send forth among them the gad-fly, and they shall devour them; and frogs, and they shall destroy them.
Psalm 105:31
He said, and the gad-fly will come, and gnats in all their bounds.
Isaiah 7:18
And it was in that day Jehovah shall hiss for the fly which is in the extremity of the rivers of Egypt, and for the bee which is in the land of Assur.