#3809 · 🪰 flies & mosquitoes
Hairy-eyed Flower Fly
🇳🇱 Bosbandzweefvlieg ·Syrphus torvus
📍 Zeddam, Netherlands
📍 Wageningen, Nederland
📍 Groesbeek, Nederland
📍 Groesbeek, Nederland
📍 Groesbeek, Nederland
📍 Tilburg, NL-NB, NL
📍 Groesbeek, Nederland
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Kostas Zontanos · CC BY 4.0
- 2. © Alexis Lours · CC BY 4.0
- 3. © Michael Knapp · CC BY 4.0
- 4. Zeddam, Netherlands:© Lars Willighagen · CC BY 4.0
- 5. Wageningen, Nederland:© André Nagelhout · CC BY-NC 4.0
- 6. Groesbeek, Nederland:© Herman Berteler · CC BY-NC 4.0
- 7. Groesbeek, Nederland:© Herman Berteler · CC BY-NC 4.0
- 8. Groesbeek, Nederland:© Herman Berteler · CC BY-NC 4.0
- 9. Tilburg, NL-NB, NL:© Paul Cools · CC BY-NC 4.0
- 10. Groesbeek, Nederland:© Herman Berteler · CC BY-NC 4.0
what is it?
Syrphus torvus is a common species of hoverfly found in the Holarctic. The adults feed on pollen and nectar, but the larvae feed on aphids.
base stats
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 122 times in the Netherlands on iNaturalist.
- 4,758 observations worldwide on iNaturalist.
- Scientifically named by Carl Robert Osten-Sacken in 1875 (151 years ago).
fact sheet
- English
- Hairy-eyed Flower Fly
- Nederlands
- Bosbandzweefvlieg
- scientific name
- Syrphus torvus
- class
- Insecta
- order
- Diptera
- family
- Syrphidae
- sightings in NL
- 122
- sightings in Europe
- 2,480
- sightings worldwide
- 4,758
- GBIF records in NL
- 6,311
- weight
- —
- length
- —
- lifespan
- —
- named
- 1875 by Carl Robert Osten-Sacken
relatives· Syrphidae
#3752 📷 10Common Drone Fly
🇳🇱 Blinde bij
Eristalis tenax
👀 4.5k in NL
#3753 📷 8Marmalade Hover Fly
🇳🇱 Snorzweefvlieg
Episyrphus balteatus
👀 2.6k in NL
#3754 📷 10Tapered Drone Fly
🇳🇱 Kegelbijvlieg
Eristalis pertinax
👀 1.6k in NL
#3755 📷 8Sun Fly
🇳🇱 Pendelzweefvlieg
Helophilus pendulus
👀 1.6k in NL
#3756 📷 10Yellow-haired Sun Fly
🇳🇱 Doodskopzweefvlieg
Myathropa florea
👀 1.4k in NL
#3757 📷 8Hornet Mimic Hover Fly
🇳🇱 Stadsreus
Volucella zonaria
👀 1.3k in NL
#3759 📷 10Migrant Hover Fly
🇳🇱 Terrasjeskommazweefvlieg
Eupeodes corollae
👀 697 in NL
#3760 📷 7Trivittate Marsh Fly
🇳🇱 Citroenpendelvlieg
Helophilus trivittatus
👀 643 in NL
Sources: iNaturalist taxon 322366, Wikidata Q2746462, GBIF 1537245, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.