Native bees have piqued my interest this year. There are so many varieties sharing the flowers with our honey bees. We had Sam Droege of the U.S. Geological Survey speak at a recent club meeting, and he advocated the benefits of bee watching as an alternative to butterfly or bird watching. There are more bee species than butterflies and birds combined, and bees are much more stationary than most birds. Perhaps this will become a pastime.
So I have been studying the biological taxonomic hierarchy of bees lately. It is all rather confusing, so this write-up will perhaps clarify this for myself as well as a couple readers.
I gathered much of the material here from Wikipedia, and also verified some information with other sources. You may complain that Wikipedia is not the best original source if you wish.