Marsh fly
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Diptera
- family: Sciomyzidae
- genus: Sepedon
- species: Sepedon fuscipennis
Lethbridge
AlbertaBells Corners
Ontario
CanadaDunedin
FloridaDenton
Gaithersburg
MarylandNorthampton
Paxton
West Concord
MassachusettsManhattan
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Pennsylvania
United States