Systematic notes on the genera Madotrogus Reitter, 1902, Xestotrogus Reitter, 1902 and Xanthotrogus Reitter, 1902 (Coleoptera : Melolonthidae). Contribution to the knowledge of the Scarabaeoidea from the Near and Middle East (8th note). Biocosme Mesogeen, 19(1-2) 2002: 11-20. 15 [Zoological Record Volume 139]