Caelifera Temporal range: late Permian – Recent
Immature grasshopper
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Hexapoda
Class:	Insecta
Order:	Orthoptera
Suborder:	Caelifera

Romalea guttata grasshoppers mating

Grasshoppers are insects with long, powerful back legs which they use for jumping. They generally live in dry habitats, such as fields, gardens and meadows, with lots of grass. They are in the suborder Caelifera, which includes locusts. There are 11,000 species, of which 10,000 are in the family Acrididae.

To distinguish grasshoppers from bush-crickets or katydids, they are sometimes referred to as the short-horned grasshopper. Species which change colour and behaviour at high population densities are called locusts.

Grasshoppers prefer to eat grasses, leaves and cereal crops, but many grasshoppers are omnivorous. Many grasshoppers eat from several host plants in one day, while others stay on one host plant. One of the 8000 species of grasshopper eats only a single species of plant.