Petrobia harti
- kingdom: Animalia
- phylum: Arthropoda
- class: Arachnida
- order: Prostigmata
- family: Tetranychidae
- genus: Petrobia
- species: Petrobia harti
Cayuga Heights
East Ithaca
Ithaca
Northeast Ithaca
New YorkNewport East
Rhode Island
United States