Rhantus calidus
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Dytiscidae
- genus: Rhantus
- species: Rhantus calidus
- South Highpoint
Florida- Coralville
Iowa- Bowling Green
Kentucky- Elizabeth City
North Carolina- Beaufort
South Carolina
United States