Narcissus bulb fly
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Diptera
- family: Syrphidae
- genus: Merodon
- species: Merodon equestris
- Richardménil
B2
France- Luxembourg
- Klintehamn
- Vibble
- Visby
Gotland- Ockelbo
Gävleborg- Åsa
Jönköping- Hovmantorp
- Växjö
Kronoberg- Alingsås
- Göteborg
- Henån
- Majorna
- Stenungsund
- Trollhättan
- Ulricehamn
Västra Götaland- Garphyttan
- Pålsboda
- Ås
- Åsbro
Örebro
Sweden- Copmanthorpe
- Horsforth
- London
- Tickhill
England
United Kingdom- Pasatiempo
California- Glen Ellyn
- Wasco
- Wheaton
Illinois- Baltimore
- Gaithersburg
- Mellwood
Maryland- Paxton
- South Boston
- West Concord
Massachusetts- Flint
- New Buffalo
Michigan- Plymouth
Minnesota- Creve Coeur
Missouri- Clementon
- East Brunswick
- Lawrenceville
- South River
- Wanaque
New Jersey- Greensboro
- Hillsborough
North Carolina- Fairview
- Wood Village
Oregon- Greenville
- Newport East
Rhode Island- Nashville
Tennessee- Taylorsville
Utah- Mantua
Virginia- Washington, D. C.
Washington, D.C.- Madison
Wisconsin
United States