Pseudopanurgus rugosus (Robertson 1895)

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 : 38

Pseudopanurgus rugosus (Robertson 1895) (aethiops group) (New state record)

County records: Jackson, Kalamazoo.

Notes. The only eastern member of the aethiops species group, i.e. Pseudopanurgus sensu stricto, is another example of a species occurring further north in the Midwestern states than in the Atlantic states, where it is recorded north only to Maryland. It is also a specialist on Asteraceae . Nesting biology in Illinois was described by Miliczky (1991).

Material examined. Kalamazoo Co.: Gull Lake (W.K. Kellogg) Biol. Sta., 19 Aug. 1960 (1 ♀ MSUC) ; Sand Creek Preserve , N42.3496, W85.7393, 1 Aug. 2016, Coreopsis tripteris, S. Naranjo (1 ♂ MSUC: RI).