Osmia (Melanosmia) pumila Cresson 1864

County records: Allegan, Barry, Berrien, Cass, Ingham, Ionia, Jackson, Kent, Lapeer, Livingston, Ottawa, Presque Isle, Saginaw, St. Clair, Tuscola, Van Buren, Washtenaw.

Notes. Nest described Maryland (Krombein 1967), New York (Goodell 2003), and Wisconsin (Medler 1967a; Medler & Lussenhop 1968).