#2603 · 🦋 butterflies & moths
Grey Dagger
🇳🇱 Psi-uil ·Acronicta psi
🦋 Butterflies & moths 📍 in the Netherlands
7 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
The grey dagger ( Acronicta psi ) is a moth of the family Noctuidae.
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 116 times in the Netherlands on iNaturalist.
- 7,937 observations worldwide on iNaturalist.
- Scientifically named in 1758 (268 years ago).
fact sheet
- English
- Grey Dagger
- Nederlands
- Psi-uil
- scientific name
- Acronicta psi
- class
- Insecta
- order
- Lepidoptera
- family
- Noctuidae
- sightings in NL
- 116
- sightings in Europe
- 5,357
- sightings worldwide
- 7,937
- GBIF records in NL
- 4,287
- weight
- —
- length
- —
- lifespan
- —
- named
- 1758
relatives· Noctuidae
#2388 📷 7Large Yellow Underwing
🇳🇱 Huismoeder
Noctua pronuba
👀 3.2k in NL
#2396 📷 10Silver Υ
🇳🇱 Gamma-uil
Autographa gamma
👀 1.7k in NL
#2414 📷 10Setaceous Hebrew Character
🇳🇱 Zwarte-c-uil
Xestia c-nigrum
👀 704 in NL
#2423 📷 10Flounced Rustic
🇳🇱 Gewone grasuil
Luperina testacea
👀 605 in NL
#2428 📷 10Lesser Yellow Underwing
🇳🇱 Volgeling
Noctua comes
👀 578 in NL
#2429 📷 9Knot Grass Moth
🇳🇱 Zuringuil
Acronicta rumicis
👀 538 in NL
#2439 📷 10Square-spot Rustic
🇳🇱 Vierkantvlekuil
Xestia xanthographa
👀 483 in NL
#2440 📷 10Flame Shoulder Moth
🇳🇱 Haarbos
Ochropleura plecta
👀 455 in NL
Sources: iNaturalist taxon 325641, Wikidata Q1859583, GBIF 1782948, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.