Megachile (Xanthosarus) gemula gemula Cresson 1878

County records: Alcona, Alger, Allegan, Alpena, Baraga, Barry, Berrien, Cheboygan, Clare, Clinton, Delta, Dickinson, Emmet, Gladwin, Gogebic, Grand Traverse, Iron, Kalamazoo, Kalkaska, Kent, Keweenaw, Leelanau, Mackinac, Manistee, Marquette, Midland, Missaukee, Montmorency, Ontonagon, Osceola, Oscoda, Otsego, Ottawa, Presque Isle, Roscommon, Schoolcraft, Shiawassee, St. Joseph, Van Buren.

Notes. Trap nesting in bored stems described from Ontario (Fye 1965) and Wisconsin (Medler & Lussenhop 1968).