Dianthidium (Dianthidium) simile (Cresson 1864)

County records: Berrien, Cass, Charlevoix, Cheboygan, Grand Traverse, Huron, Iosco, Kalkaska, Lake, Leelanau, Mackinac, Manistee, Mason, Mecosta, Midland, Montcalm, Montmorency, Oceana, Oscoda, Otsego, Ottawa, Presque Isle, Shiawassee.

Notes. A resin bee with underground nests, studied in detail in Michigan by O’Brien (2007).