Did you know there are as many as 1000 species of bees in the state of Arizona alone?  And I mean native bees!  Not honey bees or Africanized bees. The area around Tucson may have the largest selection of bees in the world except possibly Israel.  Bees are also herbivorous and like to make their homes in the ground, dead trees, where they take over holes already burrowed.  The latter are often mason or leaf-cutter bees. Let us also not forget the Bee Fly, below, another helpful pollinator! source: Arizona Sonora Desert Museum