Megachile (Chelostomoides) campanulae (Robertson 1903) (exilis group)

County records: Allegan, Barry, Berrien, Cheboygan, Clinton, Ingham, Jackson, Kalamazoo, Livingston, Marquette, Midland, Missaukee, Montmorency, Oakland, Oscoda, Presque Isle, St. Joseph, Van Buren, Washtenaw, Wayne.

Notes. A resin-collecting species that nests in stems. Nests described from Kansas, New York (Krombein 1967), and Wisconsin (Medler 1966; Medler & Lussenhop 1968).