What is a "tsetse fly"?

A tsetse fly is a biting insect found in sub-Saharan Africa that feeds on the blood of vertebrate animals, including humans. It is known for transmitting the parasite that causes sleeping sickness, a potentially fatal disease that affects both humans and animals. Tsetse flies are characterized by their large size, long proboscis, and prominent eyes, and they are commonly found in rural areas near rivers, lakes, and forests. The female tsetse fly is responsible for transmitting the disease, while the males primarily feed on plant nectar.