Melanoplus sanguinipes, commonly known as the migratory grasshopper, is a species of insect belonging to the family Acrididae. It is characterized by its medium to large size, ranging from 1.5 to 2 inches in length. This grasshopper species is known for its ability to migrate in large swarms, causing significant damage to crops and vegetation. It is typically found in grasslands and agricultural areas across North America.