Oryctes boas

Oryctes boas is a species of rhinoceros beetles from the subfamily Dynastinae (family: Scarabaeidae) which is found in many parts of sub-Saharan Africa and in some neighboring parts of the Near East. It appears to be most common in south-eastern Africa. O. boas breeds mainly in compost heaps and is a pest of coconut palms. However, in West Africa it is usually less abundant and less destructive on coconut palms compared to Oryctes monoceros, a species with a similar distribution range and biology. Both species belong to the subgenus Rykanoryctes which is characterized by having 3 fixed (immovable) spikes at the tip of the hind tibia. The main morphological difference between both species is the size of the horn. In O. boas males, the horn is very long and curved backwards at the tip. O. boas is also smaller and heavier built compared to O. monoceros. The pronotum of O. boas males has a large depression (concavity) with two pointed teeth at its hind margin and dense hair in the anterior part. Females have a short horn and the depression on the pronotum is very small, round and usually with two knobs at the hind margin.

from Wikipedia