Osmia brevis. 52759. Det. Karl V. Krombein 1946. Yavapai Point, Grand Canyon National Park, AZ. 19 June 1944. Louis Schellbach III

Grand Canyon Museum Collection, Address: 2 Albright Ave, Grand Canyon Village, AZ 86023, Phone: (928) 638-7769. https://www.nps.gov/grca/learn/historyculture/collections.htm