Features
Grasshoppers are winged insects with powerful hind legs that enable jumping and also produce sound by rubbing against the body. They are related to crickets, katydids and locusts, and can grow to be four to five inches long. Some grasshoppers can also use camouflage to disguise themselves.
Effects
As herbivores, grasshoppers will feed on any vegetation that is available. Their populations thrive in warmer, drier seasons, and they can generate substantial crop damage, especially if other food sources are scarce. However, some species survive on grass, and thus don't destroy crops or other vegetation. Grasshoppers typically cannot survive the cold.
Geography
Grasshoppers are found worldwide. They are extremely migratory and will go to wherever they find food. In the United States, the short-horned grasshopper, also known as a locust, tends to wreak the most damage in the central and northwestern states.
Considerations
As herbivores, grasshoppers can and do contribute to the environment. Their droppings return nutrients to the earth, acting as fertilizer for the local vegetation. Also, as they are a favorite food item for birds, rodents and other creatures, they help other populations survive.
Fun Fact
In various parts of the world, grasshoppers are eaten either as a delicacy or consumed as simply another source of protein.