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#2400 · 🦋 butterflies & moths

Holly Blue

🇳🇱 Boomblauwtje ·Celastrina argiolus

🦋 Butterflies & moths 📍 in the Netherlands
Holly Blue, photo 1 of 8
1/8 © Геннадий Дякин · CC BY-NC 4.0

what is it?

The holly blue ( Celastrina argiolus ) is a butterfly that belongs to the lycaenids or blues family and is native to Eurasia and North America.

base stats

  • NL sightings 1,375iNaturalist, research grade
  • worldwide 55,083iNaturalist 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 1,375 times in the Netherlands on iNaturalist: the #16 most seen of the butterflies & moths in NL.
  • 55,083 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Holly Blue
Nederlands
Boomblauwtje
scientific name
Celastrina argiolus
class
Insecta
order
Lepidoptera
family
Lycaenidae
sightings in NL
1,375
sightings in Europe
46,510
sightings worldwide
55,083
GBIF records in NL
202,797
weight
—
length
—
lifespan
—
named
1758

relatives· Lycaenidae

Sources: iNaturalist taxon 55640, Wikidata Q792871, GBIF 1925918, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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