The aquatic moth, Acentria ephemerella, was first reported from North America in 1927. Recent records from widespread localities in central North America indicate that the range of this European introduction continues to expand. The moth is well established in the western Great Lakes region and is recorded west to the Missouri River valley in Iowa.
Scholtens, B. G. and Balogh, G. J.
"Spread of Acentria Ephemerella (Lepidoptera: Pyralidae) in Central North America,"
The Great Lakes Entomologist: Vol. 29
, Article 3.
Available at: https://scholar.valpo.edu/tgle/vol29/iss1/3