Proisotoma vetusta
- kingdom: Animalia
- phylum: Arthropoda
- class: Entognatha
- order: Collembola
- family: Isotomidae
- genus: Proisotoma
- species: Proisotoma vetusta
East Palo Alto- Palo Alto
California
United States
Proisotoma vetusta East Palo Alto Palo Alto