#2839 · 🦋 butterflies & moths
Clover Hayworm Moth
🇳🇱 Triangelmot ·Hypsopygia costalis
7 photos from iNaturalist (Creative Commons) · credits & licences
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
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
#2449 📷 10Rosy Tabby
🇳🇱 Strooiselmot
Endotricha flammealis
👀 408 in NL
#2468 📷 10Bee Moth
🇳🇱 Hommelnestmot
Aphomia sociella
👀 351 in NL
#2488 📷 10Long-legged Tabby
🇳🇱 Pinokkiomot
Synaphe punctalis
👀 278 in NL
#2519 📷 10Indian-Meal Moth
🇳🇱 Indische meelmot
Plodia interpunctella
👀 191 in NL
#2530 📷 10Rosy-striped Knot-horn
🇳🇱 Prachtmot
Oncocera semirubella
👀 181 in NL
#2583 📷 10Dotted Oak Knot-horn
🇳🇱 Eikenlichtmot
Phycita roborella
👀 127 in NL
#2591 📷 10Large Tabby
🇳🇱 Vetmot
Aglossa pinguinalis
👀 123 in NL
#2609 📷 10Scarce oak knot-horn
🇳🇱 Rode eikenlichtmot
Acrobasis tumidana
👀 110 in NL
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.
