Lampyris is a genus of fireflies, which are insects known for their ability to produce light through a chemical reaction in their bodies. This bioluminescence is primarily used for attracting mates and communication. Fireflies are commonly found in warm, humid environments, often near water sources. The light produced by Lampyris species can vary in color and intensity, depending on the specific type. These insects are part of the larger family Lampyridae, which includes many other firefly species. Fireflies play an important role in ecosystems, serving as both pollinators and a food source for various predators.