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 Andrena ( Tylandrena ) wilmattae Cockerell 1906 = Andrena ( Bythandrena ) acra Mitchell, 1960: 111 (Michigan holotype; Fig 7C ). Holotype . USA : Michigan : Kalamazoo Co. : Gull Lake Biol . Sta. ( KBS ), 9 Jun. 1956 , on Crataegus , R.L. Fischer ( NMNH : 75167 ). Synonymy by LaBerge & Bouseman (1970) . County records: Branch, Kalamazoo, Lake, Washtenaw. Notes. LaBerge & Bouseman (1970) state that this large spring-flying bee is rare in collections but the number of available Michigan records and recent collection of a long series from Illinois ( Griffin et al. 2017 ) suggest that it can be locally numerous. Material examined. Branch Co . : (no locality) 1 Jun. 1941 , R.R. Dreisbach ( 1 ♂ MSUC ) ; Bronson , 14 Jun. 1959 , R.L. Fischer ( 1 ♀ MSUC ) ; Kalamazoo Co . : Gull Lake Biol. Sta. (KBS), 9 Jun. 1956 ( 3 ♂ paratypes ( R.W. Hodges ) , 1 ♀ MSUC (R.L. Fischer)); Lake Co . : (no locality) 17 Apr. 1955 , R.R. Dreisbach ( 1 ♂ MSUC ) .