Hornfaced Bee for Orchard Pollination
   Ongoing West Virginia University investigations into the use of these bees on apple orchards.
   http://www.wvu.edu/~agexten/ipm/insects/pollinat/progress/romney.htm

How to Raise and Manage Orchard Mason Bees for the Home Garden
   Article from North Carolina State University.
   http://www.ces.ncsu.edu/depts/ent/notes/Other/note109/note109.html

Orchard Mason Bees
   The orchard mason bee is slightly smaller than a honey bee and a shiny dark blue in color.
   http://gardening.wsu.edu/library/inse006/inse006.htm

The Orchard Mason Bee
   A page from the North Carolina State University describing how this bee can be an effective pollinator.
   http://www.virtualorchard.net/glfgn/february1998/masonbee.html