The term 'Fly of Africa' is a reference to the TSETSE fly, which is a species of biting fly found in tropical and subtropical regions of Africa. The TSETSE fly is known for its ability to transmit diseases such as sleeping sickness and nagana, and it is considered to be a major pest in many parts of Africa. The scientific name for the TSETSE fly is Glossina, and it is commonly referred to by its six-letter acronym, TSETSE.