This is the first report of Chauliognathus marginatus from Wisconsin. Beetles were collected at two Rock Co. sites in 1999 and 2001, and at a Grant Co. site in 2005 and 2006.
Williams, Andrew H.
"First Report of Chauliognathus Marginatus (Coleoptera: Cantharidae) From Wisconsin,"
The Great Lakes Entomologist, vol 39
Available at: https://scholar.valpo.edu/tgle/vol39/iss1/10