Enallagma basidens Calvert, a small bluet damselfly, has been expanding its range across North America since the early part of this century. It is now recorded from two widely-separated localities in the lower peninsula of Michigan.
O'Brien, Mark F.
"Enallagma Basidens (Odonata: Coenagrionidae) Expands Its Range Into Michigan,"
The Great Lakes Entomologist, vol 30
Available at: https://scholar.valpo.edu/tgle/vol30/iss3/6