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 Perdita ( Cockerellia ) albipennis Cresson 1868 pallidipennis Graenicher 1910 County records: Allegan, Barry, Berrien, Kalamazoo. Notes. Specialist on Helianthus (Asteraceae) . Nest from Kansas described by Danforth (1989) . Wolf & Ascher (2009) expressed doubt regarding the status of this subspecies, and suggested it may be a subspecies of P. bequaerti Viereck (see below). If correct, then only a single species of Perdita ( Cockerellia ) would be present in Michigan .