Among the genus Pentodon species, P. algerinum Herbst, a789 has four subspieces: P.a. algerinum, P.a. bispinifrons Reitter 1894, P.a. indicus and P.a. dispar Baudi, 1870. The subspieces seen in Saudi Arabia is P.a. dispar and this subspeices has a frontal suture whoch is mostly very fine but reaches the sides. The sides of the paramera are more curved with a triangular outer angle of apices that are mostly sharp. It is distributed in Turkey, Cyprus, Syria, Armenia, Iraq, Arabian Peninsula, Jordon, Israel and Palestine.
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