Also known as tik-tik flies. Having size of 6–15mm
in length.
? They occur only in tropical Africa and are important
as vectors of African trypanosomiasis(protozoa) in
both humans and animals.
? The tsetse are obligate parasites that live by feeding
on the blood of vertebrate animals.
? Tsetse also have a long proboscis, which extends
directly forward
