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#3773 · 🪰 flies & mosquitoes

Narcissus Bulb Fly

🇳🇱 Grote narcisvlieg ·Merodon equestris

🪰 Flies & mosquitoes 📍 in the Netherlands
Narcissus Bulb Fly, photo 1 of 9
1/9 © S. Rae · CC BY 4.0

what is it?

Merodon equestris (Narcissus bulb fly, greater bulb fly, large bulb fly, large Narcissus fly) is a Holarctic species of hoverfly (Family Syrphidae). Like many other hoverflies it displays a colouration pattern similar to a stinging insect (a bumblebee in this case) as an evolutionary defense mechanism. Other syrphid bee mimics are Mallota , Arctophila , Criorhina , Pocota and Brachypalpus .

base stats

  • NL sightings 360iNaturalist, research grade
  • worldwide 20,692iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • Spotted 360 times in the Netherlands on iNaturalist: the #22 most seen of the flies & mosquitoes in NL.
  • 20,692 observations worldwide on iNaturalist.
  • Scientifically named by Johan Christian Fabricius in 1794 (232 years ago).

fact sheet

English
Narcissus Bulb Fly
Nederlands
Grote narcisvlieg
scientific name
Merodon equestris
class
Insecta
order
Diptera
family
Syrphidae
sightings in NL
360
sightings in Europe
8,994
sightings worldwide
20,692
GBIF records in NL
25,522
weight
—
length
—
lifespan
—
named
1794 by Johan Christian Fabricius

relatives· Syrphidae

Sources: iNaturalist taxon 194786, Wikidata Q1760952, GBIF 1544340, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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