Least darter
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Perciformes
- family: Percidae
- genus: Etheostoma
- species: Etheostoma microperca
Waterloo
Ontario
Canada
Lake Villa- Momence
- New Lenox
- Venetian Village
Illinois- Chesterton
- Plymouth
- Porter
- Winona Lake
Indiana- Cheboygan
Michigan- Sarcoxie
Missouri- Delafield
Wisconsin
United States