Lasioglossum (Dialictus) zephyrum (Smith 1853)

County records: Allegan, Bay, Berrien, Calhoun, Cheboygan, Clare, Clinton, Eaton, Huron, Ingham, Ionia, Kalamazoo, Kent, Lapeer, Leelanau, Manistee, Mason, Mecosta, Midland, Montcalm, Newaygo, Oakland, Oceana, Ogemaw, Sanilac, Shiawassee, Van Buren, Wayne.

Notes. A primitively eusocial ground-nester, commonly found in southfacing banks or horizontal ground near streams and rivers (Batra 1964, 1966). A well-studied species of halictid bee; for a list of references see Gibbs (2010) and Moure & Hurd (1987).