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#2839 · 🦋 butterflies & moths

Clover Hayworm Moth

🇳🇱 Triangelmot ·Hypsopygia costalis

🦋 Butterflies & moths 📍 in the Netherlands
Clover Hayworm Moth, photo 1 of 7
1/7 © Ben Sale · CC BY 4.0

what is it?

Hypsopygia costalis , the gold triangle or clover hay moth , is a species of moth of the family Pyralidae. It was described by Johan Christian Fabricius in 1775 and is found in Europe. The wingspan is 16–23 mm. The adult moths fly from May to July, depending on the location. The supposed species H. aurotaenialis is included here pending further study.

base stats

  • NL sightings 35iNaturalist, research grade
  • worldwide 11,980iNaturalist 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 35 times in the Netherlands on iNaturalist.
  • 11,980 observations worldwide on iNaturalist.
  • Scientifically named by Johan Christian Fabricius in 1775 (251 years ago).

fact sheet

English
Clover Hayworm Moth
Nederlands
Triangelmot
scientific name
Hypsopygia costalis
class
Insecta
order
Lepidoptera
family
Pyralidae
sightings in NL
35
sightings in Europe
7,240
sightings worldwide
11,980
GBIF records in NL
4,274
weight
—
length
—
lifespan
—
named
1775 by Johan Christian Fabricius

relatives· Pyralidae

Sources: iNaturalist taxon 129149, Wikidata Q835689, GBIF 1871407, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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