Also see definition of "Grasshopper" in Word Study
Study Dictionary
Grasshopper
Grasshopper [EBD]
belongs to the class of neuropterous insects called Gryllidae. This insect is not unknown in Palestine.
In Judg. 6:5; 7:12; Job 39:30; Jer. 46:23, where the Authorized Version has "grasshopper," the Revised Version more correctly renders the Hebrew word ('arbeh) by "locust." This is the case also in Amos 7:1; Nah. 3:17, where the Hebrew word gob is used; and in Lev. 11:22; Num. 13:33; Eccl. 12:5; Isa. 40:22, where hagab is used. In all these instances the proper rendering is probably "locust" (q.v.).
Also see definition of "Grasshopper" in Word Study
