Lasioglossum (Dialictus) floridanum (Robertson 1892)

Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, Zootaxa 4352 (1), pp. 1-160 : 81

Lasioglossum (Dialictus) floridanum (Robertson 1892) ( pilosum group) (New state record)

County records: Lake, Newaygo, Ottawa, Van Buren.

Notes. Until Gibbs (2011), this was considered a subspecies of L. pilosum (Smith) that was restricted to the southeastern USA. Lasioglossum floridanum was found to range further north to overlap extensively with L. pilosum , including the northwest corner of Illinois ( Gibbs 2011; Grundel et al. 2011). It was raised from subspecific status by Gibbs (2011) based on the morphological and molecular differences and sympatric distribution with L. pilosum .

Material examined. Lake Co.: (no locality), 5 May 1945, R.R. Dreisbach (1 ♀ MSUC) ; Newaygo Co.: (no locality), 15 Jul. 1950, R.R. Dreisbach (1 ♀ MSUC) ; Van Buren Co.: Covert , 3 mi. SSE, 1 Jul. 2013, Hypochaeris radicata (1 ♀ MSUC: RI).