Tropisternus collaris
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Hydrophilidae
- genus: Tropisternus
- species: Tropisternus collaris
Mayagüez
Mayaguez
Puerto Rico
Gainesville
Florida- Crawfordsville
Indiana- Greenwood
Louisiana- Wentworth
North Carolina- Jackson
Tennessee
United States