The Buprestidae (Coleoptera) of Minnesota, with a Discussion of the Emerald Ash Borer, Agrilus planipennis Fairmaire Author Hallinen, Marie J. Author Steffens, Wayne P. Author Schultz, Jennifer L. Author Aukema, Brian H. text The Coleopterists Bulletin 2021 2021-03-20 75 1 173 190 http://dx.doi.org/10.1649/0010-065x-75.1.173 journal article 10.1649/0010-065X-75.1.173 1938-4394 4837088 92. Eupristocerus cogitans (Weber, 1801) New State Record: Pine County, Willow River, 7 August 1922 , E. Hoffman. County Records ( n = 57): Anoka, Chisago, Crow Wing, Hennepin, Lake, Pine, Ramsey, Wadena, and Washington . Collection Dates: 2 June–18 August. Minnesota Hosts: Collected on Alnus sp. Larval hosts recorded as living Alnus incana , A. incana ssp. rugosa , and Betula nigra . Collection Method: On Alnus sp. and as C. fumipennis prey.