Megachile (Chelostomoides) rugifrons (Smith, 1854)

Counties: Washington.

Comments: This rare bee is known from a single specimen in Minnesota.

Material examined: Washington Co.: Lake Elmo Park Reserve (44.9772 -92.9028): 1 ♀ (CNBL), 10 Aug 2015, E. Evans leg., net, Verbena hastata, determined by J. Gardner, confirmed by Z. Portman