#3969 · 🦗 bugs, crickets & other insects
Pond Olive
🇳🇱 Gewone tweevleugel ·Cloeon dipterum
🦗 Bugs, crickets & other insects 📍 in the Netherlands
📍 Graafland, Groot-Ammers, South Holland, NL
📍 Amsterdam
📍 Bergen op Zoom, Nederland
📍 Noordwijkerhout, Nederland
📍 Lauwersmeer - Diepsterbos / Zomerhuisbos
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Rupert Lees · CC BY 4.0
- 2. © Katja Schulz · CC BY 4.0
- 3. © Mario Bassini · CC BY 4.0
- 4. © Donald Hobern · CC BY 4.0
- 5. © David Craven · CC BY-NC 4.0
- 6. Graafland, Groot-Ammers, South Holland, NL:© no rights reserved · CC0
- 7. Amsterdam:© japiew · CC BY-NC 4.0
- 8. Bergen op Zoom, Nederland:© Mark Schellekens · CC BY-NC 4.0
- 9. Noordwijkerhout, Nederland:© Michel Langeveld · CC BY 4.0
- 10. Lauwersmeer - Diepsterbos / Zomerhuisbos:© Andre Hosper · CC BY 4.0
what is it?
Cloeon dipterum is a species of mayfly with a Holarctic distribution. It is the most common mayfly in ponds in the British Isles and the only ovoviviparous mayfly in Europe. Males differ from females in having turbinate eyes.
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 321 times in the Netherlands on iNaturalist: the #28 most seen of the bugs, crickets & other insects in NL.
- 8,099 observations worldwide on iNaturalist.
- Scientifically named in 1761 (265 years ago).
fact sheet
- English
- Pond Olive
- Nederlands
- Gewone tweevleugel
- scientific name
- Cloeon dipterum
- class
- Insecta
- order
- Ephemeroptera
- family
- Baetidae
- sightings in NL
- 321
- sightings in Europe
- 1,770
- sightings worldwide
- 8,099
- GBIF records in NL
- 41,540
- weight
- —
- length
- —
- lifespan
- —
- named
- 1761
Sources: iNaturalist taxon 217219, Wikidata Q691414, GBIF 1407879, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.