The term 'Blowfly' is a common name for the family of flies known as Calliphoridae. These flies are found in many parts of the world and are known for their metallic blue or green coloration. They are also known for their ability to lay eggs in decaying organic matter, which can lead to the spread of disease. The term 'BLUEBOTTLE' is another name for the same family of flies, and is often used interchangeably with 'Blowfly'.