Tettigoniidae, commonly known as bush crickets or katydids, are a family of insects within the order Orthoptera. They are characterized by their long antennae, which can be several times the length of their bodies, and their ability to produce sound through stridulation, a process where they rub their wings together. These insects are primarily nocturnal and are found in various habitats, including forests, grasslands, and gardens. Bush crickets are known for their green coloration, which helps them blend into their surroundings as a form of camouflage. They are herbivorous, feeding on leaves and other plant materials. With over 6,000 species worldwide, Tettigoniidae play an important role in ecosystems as both herbivores and prey for various predators.