Heterochelus sobrinus is a species of beetle of the family Scarabaeidae. It is found in South Africa (Eastern Cape).
Adults reach a length of about . Males are black, with the elytra, the pygidium and the sides of the abdomen clothed with pale, sub-flavescent scales. The legs are red. The pronotum is clothed with a few squamulose hairs and a few scales in the posterior part and the scutellum is covered with scales which are similar to those covering the elytra. Females are black, with the elytra dark chestnut-brown or testaceous red, and clothed with appressed, not so dense hairs. There is a narrow band of flavescent scales at the apex and the pygidium is densely scaly.