KEY

Abstract

         A taxonomical key was prepared that could be used to separate the Iraqi genera of the wild bees in the family of the leaf cutting bees  Megachilidae – Hymenoptera. The prepared key depended manily on the most important characters of the mouthparts of the adult males and females of the bees. The most important characters of the mouthparts were illustrated photographically. The Iraqi genera  of Megachilidae included were  five previously recorded in Iraqi which are  (Megachile ,Chalicodoma ,Coelioxys  ,Anthidium , Anthidiellum ) and two  genera recorded in the present  study which are  (Osmia , Icteranthidium )  .