'Canker worm' in the Bible

Yahweh of Armies has sworn by himself, [saying], Surely I will fill you with men, as with the canker worm; and they shall lift up a shout against you.

Set up a standard in the land, blow the trumpet among the nations, prepare the nations against her, call together against her the kingdoms of Ararat, Minni, and Ashkenaz: appoint a marshal against her; cause the horses to come up as the rough canker worm.