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 Osmia ( Osmia ) cornifrons (Radoszkowski 1887) County records: Allegan, Berrien, Grand Traverse, Ingham, Ionia, Kalamazoo, Kent , Leelanau, Oakland, Oceana, Ottawa, Van Buren , Washtenaw. Notes. This non-native species was intentionally introduced to North America from Japan for pollination studies in both Utah and Maryland , in 1965 and 1977 , respectively ( Batra 1979 ; Rust 1974 ), and became established in the Mid-Atlantic states following the latter. It was shipped to Leelanau County, Michigan from Indiana in 2005 for pollination trials on cherry with subsequent imports from Pennsylvania ( Rothwell 2006; JG, pers. obs. ). It is a potentially valuable economic pollinator of cherry and apple ( Batra 1979 , 2007 ). The species is now well established in Michigan in both urban settings and semi-natural areas near urban centers. It can be collected in large numbers in the spring.