- Any one of numerous species of long-winged, migratory,
orthopterous insects, of the family Acrididae, allied to the
grasshoppers; esp., (Edipoda, / Pachytylus, migratoria, and Acridium
perigrinum, of Southern Europe, Asia, and Africa. In the United States
the related species with similar habits are usually called
grasshoppers. See Grasshopper. - The locust tree. See Locust Tree (definition, note, and
phrases).