Isodontia elegans (Smith) (Hymenoptera: Sphecidae), one of the “grass- carrying wasps,” previously known only from the western U.S., is now reported from southeastern Michigan, and appears to have spread across the eastern half of the United States in a relatively short period.
O'Brien, Mark F. and Craves, Julie A.
"Isodontia Elegans Now in Michigan (Hymenoptera: Sphecidae: Sphecinae),"
The Great Lakes Entomologist: Vol. 39
, Article 14.
Available at: https://scholar.valpo.edu/tgle/vol39/iss1/14