Grasshoppers signify the same as locusts: falsity which vastates the extremes of the natural part of the mind.

(რეკომენდაციები: Arcana Coelestia 7643)

7269. Also Aaron thy brother shall be thy prophet. That this signifies the doctrine thence derived, is evident from the signification of a “prophet,” as being the truth of doctrine, thus doctrine from the Word (see n. 2534). (That Aaron represents the doctrine of the church, or the doctrine of good and truth which is from the Word, see n. 6998, 7009, 7089.) As a “prophet” signifies doctrine, in a determinate sense it signifies one who teaches, according to what was said just above (see n. 7268 at the end).