Osmia (Melanosmia) simillima Smith 1853
County records: Alger, Allegan, Barry, Bay, Berrien, Branch, Calhoun, Cheboygan, Clinton, Dickinson, Emmet, Gladwin, Huron, Ingham, Ionia, Kalamazoo, Keweenaw, Lake, Lapeer, Leelanau, Livingston, Manistee, Mecosta, Midland, Missaukee, Montcalm, Ottawa, Roscommon, Saginaw, Shiawassee, St. Clair, Van Buren.
Notes. Recorded nesting in oak galls, possibly from Massachusetts (Packard 1867). Scott (1993) describes this species nesting communally in buried wood at a sandy site at Pictured Lakes National Lakeshore, Michigan. A nest in driftwood on the west shore of Lake Michigan was reported by Graenicher (1905).