Utah State University Extension
Utah is home to more than 20 percent of the 4,000+ named species of wild bees that are native to North America. Except for bumblebees and some sweat bees, our native bees are solitary, not social, many with just one annual generation that coincides with bloom by their favorite floral hosts. In contrast, the familiar honeybee is highly social, has perennial colonies, and was brought to North America by settlers from Europe.
Cane, James H. and Kervin, Linda, "Gardening for Native Bees in Utah and Beyond" (2013). All Current Publications. Paper 908.