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#2429 · 🦋 butterflies & moths

Knot Grass Moth

🇳🇱 Zuringuil ·Acronicta rumicis

🦋 Butterflies & moths 📍 in the Netherlands
Knot Grass Moth, photo 1 of 9
1/9 © Michał Brzeziński · CC BY-NC 4.0

what is it?

Acronicta rumicis , the knot grass moth , is a moth which is part of the genus Acronicta and family Noctuidae. It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae . It is found in the Palearctic region. A. rumicis lives and feeds on plants located in wide-open areas. At its larval stage, as a caterpillar, it causes such a large impact as a crop pest that it has received much attention and...

base stats

  • NL sightings 538iNaturalist, research grade
  • worldwide 34,428iNaturalist 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 538 times in the Netherlands on iNaturalist: the #45 most seen of the butterflies & moths in NL.
  • 34,428 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Knot Grass Moth
Nederlands
Zuringuil
scientific name
Acronicta rumicis
class
Insecta
order
Lepidoptera
family
Noctuidae
sightings in NL
538
sightings in Europe
30,172
sightings worldwide
34,428
GBIF records in NL
29,673
weight
—
length
—
lifespan
—
named
1758

relatives· Noctuidae

Sources: iNaturalist taxon 55623, Wikidata Q474590, GBIF 1782672, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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