Oncocephala gestroi is a species of beetle of the family Chrysomelidae. It is found in Ethiopia, Burundi, Rwanda, Tanzania and South Africa.
Adults reach a length of about 4.6âÂÂ5 mm. The head, antennae and legs are dark brownish, while the pronotum and elytra are light brownish with a black tinge.
The recorded host plant for this species is Oryza sativa.