#4262 · 🕷️ spiders & kin
Alder erineum mite
🇳🇱 Elzenviltmijt ·Acalitus brevitarsus
📍 9205 ED Drachten, Nederland
📍 9976 VA Lauwersoog, Nederland
📍 Noordwijkerhout, Nederland
📍 Noordwijk, Zuid-Holland, Netherlands
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Stephen James McWilliam · CC0
- 2. © weekend · CC BY-NC 4.0
- 3. © Stephen James McWilliam · CC0
- 4. © Stephen James McWilliam · CC0
- 5. © Paul Cook · CC BY 4.0
- 6. © Alexis Tinker-Tsavalas · CC BY 4.0
- 7. 9205 ED Drachten, Nederland:© teddydolstra · CC BY-NC 4.0
- 8. 9976 VA Lauwersoog, Nederland:© teddydolstra · CC BY-NC 4.0
- 9. Noordwijkerhout, Nederland:© Michel Langeveld · CC BY 4.0
- 10. Noordwijk, Zuid-Holland, Netherlands:© Michel Langeveld · CC BY 4.0
what is it?
Acalitus brevitarsus is an eriophyid mite which induces domed, blister like swellings, known as galls. on some species of alder ( Alnus species).
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 33 times in the Netherlands on iNaturalist.
- 2,632 observations worldwide on iNaturalist.
fact sheet
- English
- Alder erineum mite
- Nederlands
- Elzenviltmijt
- scientific name
- Acalitus brevitarsus
- class
- Arachnida
- order
- Sarcoptiformes
- family
- Eriophyidae
- sightings in NL
- 33
- sightings in Europe
- 1,047
- sightings worldwide
- 2,632
- GBIF records in NL
- 1,912
- weight
- —
- length
- —
- lifespan
- —
relatives· Eriophyidae
#4219 📷 10Red Nail Gall Mite
🇳🇱 Lindehoorntjesmijt
Eriophyes tiliae
👀 97 in NL
#4221 📷 10alder vein angle gall
🇳🇱 Elzennerfhoekmijt
Eriophyes inangulis
👀 86 in NL
#4226 📷 8Sycamore Cherry Mite
🇳🇱 Esdoornknobbelmijt
Aceria cephalonea
👀 78 in NL
#4236 📷 10Elm Leaf Gall Mite
🇳🇱 Iepenknobbelmijt
Aceria campestricola
👀 65 in NL
#4245 📷 10Walnut Blister Mite
🇳🇱 Okkernootviltmijt
Aceria erinea
👀 45 in NL
#4254 📷 10Willow Bead Gall Mite
🇳🇱 Schietwilgwratmijt
Aculus tetanothrix
👀 38 in NL
#4257 📷 7Alder Leaf Gall Mite
🇳🇱 Elzenwratmijt
Eriophyes laevis
👀 37 in NL
#4259 📷 10solitary maple leaf gall mite
🇳🇱 Esdoornnerfhoekmijt
Aceria macrochela
👀 34 in NL
Sources: iNaturalist taxon 334080, Wikidata Q10398216, GBIF 4544242, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.