This is a rough grouping, including species that are associated with the flowers of various woody shrubs; Dogwoods, Hawthorns, some Maples, Rhododendrons, Serviceberries, Spirea, Blueberries, and others. Most of these bees are active late May into June. Willow specialists are treated elsewhere.
Genus level ID: See the Mining Bee page for tips on separating other genera.
Click each box for more details on a given species.
Please note that many of our datasets have not been published yet, so the maps are incomplete.