The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history Author Gibbs, Jason Author Ascher, John S. Author Rightmyer, Molly G. Author Isaacs, Rufus text Zootaxa 2017 2017-11-21 4352 1 1 160 journal article 31367 10.11646/zootaxa.4352.1.1 543c4afc-4ffb-4e11-a858-a6d1d9745214 1175-5326 1063854 7C684128-FFA7-48AA-B395-B9C6BC39353A Megachile ( Eutricharaea ) rotundata (Fabricius 1787) County records: Alger , Barry, Cass, Houghton, Ingham, Kalamazoo, Kalkaska, Kent , Lake, Leelanau, Mecosta, Oakland, Washtenaw, Wayne, Wexford. Notes. Exotic. The nesting biology has been well studied as M. rotundata is actively managed for alfalfa pollination ( Hurd 1979 ; Pitts-Singer & Cane 2011 ). It was found in abundance in trap-nests placed on MSU campus, East Lansing, Michigan (JG, pers. obs.).