Parasphaerocera nigrifemur
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Diptera
- family: Sphaeroceridae
- genus: Parasphaerocera
- species: Parasphaerocera nigrifemur
Cabin John
Maryland
United States
Parasphaerocera nigrifemur
Cabin John