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#3616 · 🐝 bees, wasps & ants

Mexican Grass-carrying Wasp

🇳🇱 Mexicaanse zwartsteel ·Isodontia mexicana

🐝 Bees, wasps & ants 📍 in the Netherlands (introduced)
Mexican Grass-carrying Wasp, photo 1 of 10
1/10 © DiegoH · CC BY 4.0

what is it?

Isodontia mexicana , the Grass-carrying wasp , is a species belonging to the family Sphecidae. It is mainly found throughout North America, but has become established in Europe, primarily France, Switzerland, Hungary, Italy and Spain.

base stats

  • NL sightings 27iNaturalist, research grade
  • worldwide 18,709iNaturalist 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 27 times in the Netherlands on iNaturalist.
  • 18,709 observations worldwide on iNaturalist.
  • Scientifically named by Henri de Saussure in 1867 (159 years ago).
  • Not originally Dutch: it was introduced to the Netherlands.

fact sheet

English
Mexican Grass-carrying Wasp
Nederlands
Mexicaanse zwartsteel
scientific name
Isodontia mexicana
class
Insecta
order
Hymenoptera
family
Sphecidae
in NL
introduced
sightings in NL
27
sightings in Europe
4,758
sightings worldwide
18,709
GBIF records in NL
2,518
weight
—
length
—
lifespan
—
named
1867 by Henri de Saussure

relatives· Sphecidae

Sources: iNaturalist taxon 203340, Wikidata Q3014022, GBIF 1346919, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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