'Gad fly' in the Bible

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

And I separated in that day the land of Goshen, which my people stood upon it, for no gad-fly to be there; that thou shalt know that I am Jehovah in the midst of the earth.

And Jehovah will do so; and the gad-fly will come forth a multitude into the house of Pharaoh and the house of his servants, and into all the land of Egypt: and the land will be destroyed from before the gad-fly.

And Moses will say, Behold, I will go forth from thee, and pray for thee to Jehovah; and the gad-fly shall depart from Pharaoh, from his servants and from his people, to-morrow: only Pharaoh shall not add to deceive, not to send away the people to sacrifice to Jehovah.

And Jehovah will do according to the word of Moses; and he will remove the gad-fly from Pharaoh, and from his servants, and from his people; not one was left over.

He will send forth among them the gad-fly, and they shall devour them; and frogs, and they shall destroy them.

He said, and the gad-fly will come, and gnats in all their bounds.