Lasioglossum (Dialictus) lineatulum (Crawford 1906)

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 : 82-83

Lasioglossum (Dialictus) lineatulum (Crawford 1906)

Halictus lineatulus Crawford 1906: 5 .

Syntype ♀ USA, “ Ag. Coll. Mich. ”, 5 [4-11 Oct.] Oct. 1893, R.H. Wolcott ( NMNH: 12071).

County records: Alcona, Allegan, Alpena, Antrim, Arenac, Barry, Bay, Benzie, Berrien, Branch, Calhoun, Cass, Cheboygan, Clare, Clinton, Crawford, Delta, Dickinson, Eaton, Emmet, Genesee, Gladwin, Gogebic, Grand Traverse, Gratiot, Huron, Ingham, Ionia, Iosco, Isabella, Jackson, Kalamazoo, Kalkaska, Kent, Lake, Lapeer, Leelanau, Livingston, Manistee, Mason, Mecosta, Midland, Missaukee, Montcalm, Montmorency, Muskegon, Newaygo, Oakland, Oceana, Osceola, Oscoda, Otsego, Ottawa, Roscommon, Saginaw, Sanilac, Shiawassee, St. Clair, Tuscola, Van Buren, Washtenaw, Wayne, Wexford.

Notes. A ground-nesting primitively eusocial species studied in detail in New York ( Eickwort 1986). The type locality is uncertain. A number of specimens at MSUC were labeled as “Ag. Coll. Mich.” at a time when MSU was known as the “Agricultural College of the State of Michigan ”. However, these labels may refer to the specimens as the property of the Agricultural College rather than the original collection locality. Careful records of accession were not maintained in the early management of MSUC. The type series is likely from Michigan since the collector, Robert H. Wolcott, studied at the University of Michigan until 1893 ( Hungerford 1935), which coincides with the collection date. The species is common in the state and region.