Lampyridae, commonly known as fireflies or lightning bugs, are a family of insects belonging to the beetle order Coleoptera. They are known for their bioluminescent ability, producing light through a chemical reaction in their abdomen. Fireflies use their light to attract mates or communicate with each other, creating a mesmerizing display during summer nights. These insects are found worldwide, with over 2,000 species identified, each with its own unique pattern and timing of light emission.