This is an Omorgus, a Bone Beetle of the family Keratin Beetles (Trogidae)
3 species are recorded from KTP: asperulatus, squalidus and freyi.
Fun fact:
Beetles are believed to make up approximately 40% of total arthropod diversity. The widely accepted estimate for athropods falls between five and 80 million species globally.
The Coleoptera, with probably much more than 400,000 species, is the largest of all orders, constituting 25% of all known animal life-forms.
And many of them can be identified with almost certainty

The Trogidae represent a lineage of keratin-feeding Scarabaeoidea, the only group in the superfamily to do so and one of few insect groups capable of digesting keratin.