Asthenopholis rex is a species of beetle of the family Scarabaeidae.Global Biodiversity Information Facility It is found in South Africa (KwaZulu-Natal).

Description Adults reach a length of about . They are brown to black, with straw coloured cuticular scales. The scutellum is smooth and lacks any punctation or setae.

Etymology The species name is derived from Latin rex (meaning king) and refers to its large size.

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