Heterochelus flavus is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape).
Adults reach a length of about . They are black, with the front legs and antennae reddish-brown. The base of the pronotum, scutellum, elytra and pygidium are densely covered with sulfur-yellow, rounded scales. The propygidium without a margin of scales and the abdomen is very sparsely covered with white hairs.