This is Hoax, the giant water bug
Water bugs are members of the class Insecta. The giant water bug belongs to the family Belostomatidae, one of 50 families in the order Hemiptera. There are approximately 100 species in the family Belostomatidae that live primarily in North America, South Africa and India.
The giant millipede lives in both tropical and arid coastal forests of eastern Africa. The body is brown, flat and oval, giving them an appearance similar to that of a cockroach. The front legs are raptorial to seize prey. Their other two pairs of legs are flattened and fringed with hair to increase their surface area.
These legs are used like paddles for propulsion. Adults have two pairs of wings, but they rarely fly unless forced to by unfavorable water conditions or lack of an adequate food supply.
This bug lives one year or longer and in the past there were rumors that it causes skin virus if you touch it, but that was only fake alert, because these bugs are harmless to people.