#4054 · 🦗 bugs, crickets & other insects
Elm Seed Bug
🇳🇱 Iepenridderwants ·Arocatus melanocephalus
📍 Groningen, De Trefkoel, 9742 CA Groningen, Netherlands
📍 Professor Dondersstraat, Tilburg, Brabant, NL
📍 9717 ED Groningen, Netherlands
📍 Vlashof, 5011 Tilburg, Netherlands
📍 9742 CJ Groningen, Netherlands
📍 Noord-Brabant, NL
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Alexis Tinker-Tsavalas · CC BY 4.0
- 2. © Alexis Tinker-Tsavalas · CC BY 4.0
- 3. © Alexis Tinker-Tsavalas · CC BY 4.0
- 4. © Sam · CC BY-NC 4.0
- 5. Groningen, De Trefkoel, 9742 CA Groningen, Netherlands:© Mick Elliot · CC BY-NC 4.0
- 6. Professor Dondersstraat, Tilburg, Brabant, NL:© willembluijssen · CC BY-NC 4.0
- 7. 9717 ED Groningen, Netherlands:© Mick Elliot · CC BY-NC 4.0
- 8. Vlashof, 5011 Tilburg, Netherlands:© Mark Schellekens · CC BY-NC 4.0
- 9. 9742 CJ Groningen, Netherlands:© Mick Elliot · CC BY-NC 4.0
- 10. Noord-Brabant, NL:© Lars Willighagen · CC BY 4.0
what is it?
Arocatus melanocephalus , the elm seed bug , is a true bug in the family Lygaeidae. The species was initially described by Johan Christian Fabricius in 1798, and Maximilian Spinola designated it to be the type species of the genus Arocatus in 1837. This bug is native to Europe but has been introduced to North America.
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 60 times in the Netherlands on iNaturalist.
- 3,817 observations worldwide on iNaturalist.
- Scientifically named by Johan Christian Fabricius in 1798 (228 years ago).
- Not originally Dutch: it was introduced to the Netherlands.
fact sheet
- English
- Elm Seed Bug
- Nederlands
- Iepenridderwants
- scientific name
- Arocatus melanocephalus
- class
- Insecta
- order
- Hemiptera
- family
- Lygaeidae
- in NL
- introduced
- sightings in NL
- 60
- sightings in Europe
- 1,216
- sightings worldwide
- 3,817
- GBIF records in NL
- 2,277
- weight
- —
- length
- —
- lifespan
- —
- named
- 1798 by Johan Christian Fabricius
relatives· Lygaeidae
#3975 📷 8Birch Catkin Bug
🇳🇱 Berkensmalsnuit
Kleidocerys resedae
👀 268 in NL
#4120 📷 10Rotsridderwants
Spilostethus saxatilis
👀 2 in NL
#4128 📷 7Black-and-Red Bug
🇳🇱 Prachtridderwants
Lygaeus equestris
👀 1 in NL
#4129 📷 8Praalridderwants
Melanocoryphus albomaculatus
👀 1 in NL
#4164 📷 9Large Milkweed Bug
Oncopeltus fasciatus
🌍 96.6k seen
#4175 📷 8Small Milkweed Bug
Lygaeus kalmii
🌍 42.9k seen
#4134 📷 8Indian Milkweed Bug
🇳🇱 Pandoerridderwants
Spilostethus pandurus
🌍 16k seen
Sources: iNaturalist taxon 505749, Wikidata Q16525387, GBIF 4486295, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.
