Leafhoppers are small, jumping insects belonging to the family Cicadellidae. They are typically green or brown and are known for their ability to leap away quickly when disturbed. Leafhoppers feed on plant sap, which can lead to damage in crops and gardens. These insects are also important in the ecosystem as they serve as food for various predators, including birds and other insects. Some species of leafhoppers can transmit plant diseases, making them significant in agriculture. Their presence can indicate the health of a plant or ecosystem.