#4254 · 🕷️ spiders & kin

Willow Bead Gall Mite

🇳🇱 Schietwilgwratmijt ·Aculus tetanothrix

10 photos from iNaturalist (Creative Commons) · credits & licences

1. © Chalon Boesel · CC BY-NC 4.0
2. © pdpratt · CC BY-NC 4.0
3. © Jim Brighton · CC BY-NC 4.0
4. © Bob Hislop · CC BY-NC 4.0
5. Waterland 181, Groningen, Groningen, NL:© Andre Hosper · CC BY 4.0
6. Alkmaar, Nederland:© Joost . · CC BY-NC 4.0
7. Harenkarspel, NL-NH, NL:© 05gi02el03 · CC BY-NC 4.0
8. 9932 BD Delfzijl, Nederland:© teddydolstra · CC BY-NC 4.0
9. Alkmaar, Nederland:© Joost . · CC BY-NC 4.0
10. Wageningen, Nederland:© André Nagelhout · CC BY-NC 4.0

what is it?

Aculus tetanothrix is a species of mite which causes galls on the leaves of willows ( Salix species). It was first described by Alfred Nalepa in 1889.

base stats

NL sightings 38iNaturalist, research grade
worldwide 7,936iNaturalist 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).