Berosus sayi
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Hydrophilidae
- genus: Berosus
- species: Berosus sayi
- Edmonton
- Medicine Hat
Alberta- Winnipeg
Manitoba
Canada- Gainesville
Florida- Chicago
- Evanston
- Evergreen Park
- Tinley Park
Illinois- Sherborn
Massachusetts- Staten Island
New York
United States