Heterochelus sulphureus is a species of beetle of the family Scarabaeidae. It is found in South Africa (KwaZulu-Natal, Eastern Cape).
Adults reach a length of about . They are very dark brown or fuscous and with a metallic tinge, which is very noticeable on the hind legs. The head and pronotum are clothed with a very short, but dense yellowish-green pubescence. The elytra are entirely covered with yellowish-green scales. The pygidium is scaly and has two basal, brownish, velvety patches. Females are much smaller than males and have chestnut-brown elytra with four bands of yellowish lanceolate hairs on each side. The pygidium is covered with yellowish scales, and has two basal, dark brown spots.