Lucilia caesar is a species of blowfly commonly found in Europe, Asia, and North America. It is easily recognized by its metallic green color and is often seen on decaying organic matter, where it lays its eggs. The larvae, or maggots, play a crucial role in the decomposition process. This fly is also known for its role in forensic science, as its presence can help estimate the time of death in forensic investigations. Lucilia caesar is attracted to carrion and waste, making it an important species for studying ecological interactions and the life cycle of insects.