Revelation 9:1, 3, 5

The fifth angel sounded his trumpet, and I saw a star that had fallen from the sky to the earth. The star was given the key to the shaft of the Abyss.

And out of the smoke locusts came down on the earth and were given power like that of scorpions of the earth.

They were not allowed to kill them but only to torture them for five months. And the agony they suffered was like that of the sting of a scorpion when it strikes.