The creator Tsetse Bumba created nine creatures and then man. It is also known as TseTse in African mythology myths and stories.
He ordered each to observe particular taboos, but one creature, Tsetse Bumba, refused to. Bumba therefore expelled her from earth.
She sought refuge in the sky, where she has lived ever since, but Bumba allows her to make occasional visits to earth to bring fire for otherwise men would have none.
Her descendents are a mixed blessing, for every one brings some disaster, but men have been able to light fires from trees that Tsetse Bumba has struck. (Bushongo myth, Kasai province, Zaire) A.G.H.
Savil, Sheila. Pears Encyclopedia of Myths and Legends. «Western and Northern Europe, Central and Southern Africa.» London. Pelham Books Ltd. 1977. p. 156