A katydid is a type of insect belonging to the family Tettigoniidae, which is part of the order Orthoptera. These insects are known for their long antennae and leaf-like appearance, which helps them blend into their surroundings. Katydids are primarily found in warm, temperate regions and are most active at night, making them nocturnal creatures. Katydids are famous for their distinctive sounds, which are produced by males to attract females. They create these sounds by rubbing their wings together, a process known as stridulation. This behavior is similar to that of crickets, another member of the Orthoptera order.