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#3574 · 🐝 bees, wasps & ants

Oak Curved-leaf Gall Wasp

🇳🇱 Gordelgalwesp ·Andricus curvator

🐝 Bees, wasps & ants 📍 in the Netherlands
Oak Curved-leaf Gall Wasp, photo 1 of 8
1/8 © Sepp Schmid · CC BY-NC 4.0

what is it?

Andricus curvator is a gall wasp which forms chemically induced leaf galls on oak trees and has both agamic and sexual generations. Agamic and sexual generations usually form two distinct galls on oak trees, but in the case of A. curvator there are six galls; the sexual generation usually on the leaf, occasionally in a twig or catkin, and the agamic generation in a bud. The wasp was first described by Theodor Hartig, a German biologist,...

base stats

  • NL sightings 55iNaturalist, research grade
  • worldwide 1,933iNaturalist 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 55 times in the Netherlands on iNaturalist.
  • 1,933 observations worldwide on iNaturalist.
  • Scientifically named by Theodor Hartig in 1840 (186 years ago).

fact sheet

English
Oak Curved-leaf Gall Wasp
Nederlands
Gordelgalwesp
scientific name
Andricus curvator
class
Insecta
order
Hymenoptera
family
Cynipidae
sightings in NL
55
sightings in Europe
1,810
sightings worldwide
1,933
GBIF records in NL
3,043
weight
—
length
—
lifespan
—
named
1840 by Theodor Hartig

relatives· Cynipidae

Sources: iNaturalist taxon 127729, Wikidata Q14409594, GBIF 1309593, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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