Phytomyza crassiseta
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Diptera
- family: Agromyzidae
- genus: Phytomyza
- species: Phytomyza crassiseta
- Wiesloch
Baden-Württemberg- Dahlem
- Friedenau
- Frohnau
- Schmargendorf
Berlin- Glienicke
Brandenburg- Mühlhausen
Thuringia
Germany- The Hague
South Holland
Netherlands- Salcombe
England
United Kingdom- Greenfield
Massachusetts- Millvale
Pennsylvania
United States