Wikipedia
Bunzi
Bunzi, in Woyo ( Congo) mythology, is a goddess of rain. She is the daughter of Mboze, the Great Mother. Bunzi appears as a multicolored serpent, and rewards those who worship her with an abundant harvest. Mboze took her own son, Makanga, as a lover and gave birth to Bunzi. Upon seeing that Mboze had given birth to a serpent, Mboze's husband Kuitikuiti knew that she had been unfaithful to him, and killed her. Bunzi took on her mother's rain-bringing power. According to legend, when a rainbow appears in the sky, that is Bunzi. Sometimes she can also be seen in the rippling water of the river at sunset.
The Bunzi Mons, a mountain on Venus, is named after her.