The adult beetles bore into the stalks of the date bunches or the base of the palm fronds (leaves), often causing these to break off.

[8] The subspecies sinaicus (originally described as sinaica without type locality) is found in Egypt (Sinai Peninsula) and Israel.

It belongs to the subgenus Rykanoryctes which is characterized by the end of the hind tibia having 3 immovable spikes apart from some moveable processes (see illustration on the right).

Therefore, the morphological differences between them are of interest:[8][12] Date palms are the only host plants for both larvae and adults of Oryctes agamemnon.

[9] However, in the Arabian Peninsular, the adults attack the stalks of the date bunches, similar to the damage done by Oryctes elegans.

[10] Regular, annual cleaning of the date palms is the most important control method against Oryctes agamemnon infestations.

The dead fronds and plant debris are the oviposition sites for the female beetles and serve as food for the young larvae.

Therefore, it is important to prevent the movement of date palm seedlings out of the infested areas with effective quarantine procedures.

[9][10] Oryctes agamemnon shows considerable variation in some characters like the density of small pits on the surface of the elytra.