Ceratina (Zadontomerus) calcarata Robertson, 1900

Portman, Zachary M., Gardner, Joel, Lane, Ian G., Gerjets, Nicole, Petersen, Jessica D., Ascher, John S., Arduser, Mike, Evans, Elaine C., Boyd, Crystal, Thomson, Robin & Cariveau, Daniel P., 2023, A checklist of the bees (Hymenoptera: Apoidea) of Minnesota, Zootaxa 5304 (1), pp. 1-95 : 33

Ceratina (Zadontomerus) calcarata Robertson, 1900

Counties: Aitkin, Anoka, Becker, Beltrami, Benton, Big Stone, Blue Earth, Brown, Carver, Cass, Chisago, Clay, Clearwater, Crow Wing, Dakota, Douglas, Faribault, Fillmore, Freeborn, Goodhue, Grant, Hennepin, Houston, Hubbard, Isanti, Jackson, Kandiyohi, Koochiching, Lyon, Marshall, Meeker, Mille Lacs, Morrison, Norman, Olmsted, Otter Tail, Pine, Pipestone, Pope, Ramsey, Red Lake , Redwood, Renville, Rock, Roseau, Saint Louis, Scott, Sherburne, Sibley, Stearns, Traverse, Wabasha, Waseca, Washington, Winona, Wright.