#4315 · 🕷️ spiders & kin
Filbert Bud Mite
🇳🇱 Hazelnootrondknopmijt ·Phytoptus avellanae
7 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
39 in) across, sometimes slightly open, on the buds of hazel ( Corylus avellana ) and on filbert ( Corylus maxima ). Synonyms include Phytocoptella avellanae , Eriophyes avellanae , Calycophthora avellanae , Phytoptus coryli , Phytoptus pseudogallarum , and Acarus pseudogallarum . 3 mm long, with numerous tergites and sternites. Two forms of P. avellanae exist, a gall causer and a vagrant form that has a more...
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 12 times in the Netherlands on iNaturalist.
- 936 observations worldwide on iNaturalist.
- Scientifically named by Alfred Nalepa in 1889 (137 years ago).
fact sheet
- English
- Filbert Bud Mite
- Nederlands
- Hazelnootrondknopmijt
- scientific name
- Phytoptus avellanae
- class
- Arachnida
- order
- Sarcoptiformes
- family
- Phytoptidae
- sightings in NL
- 12
- sightings in Europe
- 684
- sightings worldwide
- 936
- GBIF records in NL
- 866
- weight
- —
- length
- —
- lifespan
- —
- named
- 1889 by Alfred Nalepa
Sources: iNaturalist taxon 55560, Wikidata Q1588278, GBIF 2128084, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.