The term 'Long-Horned Grasshopper' is a common name for the species of insect known as a KATYDID, which has seven letters. Katydids are members of the Tettigoniidae family and are found in many parts of the world. They are typically green or brown in color and have long antennae that can be up to twice the length of their bodies. They feed on leaves and other plant material and are known for their loud chirping sound.