locusts

Any of the grasshoppers, often polyphenic and usually swarming, in the family Acrididae that are very destructive to crops and other vegetation, (especially) the migratory locust (Locusta migratoria).

A fruit or pod of the carob tree.

Any of various often leguminous trees and shrubs, especially of the genera Robinia and Gleditsia; the locust tree.

A cicada.

A Mainlander.

To come in a swarm.