Sycamore Cherry Mite

Aceria cephalonea

It is a species of mite parasite of plants, commonly causing galls or other damage to the plant tissues, known as gall mite.
Gall Mite - Aceria cephalonea Zoete Waters, Belgium.

I hope I entered the Order correctly. Took it from this description:
Parasites > Animalia > Arthropoda > Acari > Actinotrichida > Prostigmata > Eleutherengona > Eriophyoidea > Eriophyidae > Eriophyinae > Acerini > Aceria > Aceria cephalonea

I am not an expert on these things... Aceria cephalonea,Belgium,Gall Mite Aceria cephalonea,Geotagged,Spring

Appearance

They are microscopic mites, worm like, and have only two pairs of legs.
They form globular red galls in the leaf of the plant they invade. The galls are red, less than 3 mm high and have a rounded apex. The galls are seen more often than the mite.

Distribution

Europe.

Behavior

Their primary method of population spread is by wind.

Habitat

Host plants
Sapindaceae, monophagous
Acer campestre, monspessulanum, negundo, pseudoplatanus, rubrum, tataricum

References:

Some text fragments are auto parsed from Wikipedia.

https://bladmineerders.nl/parasites/animalia/arthropoda/acari/actinotrichida/prostigmata/eleutherengona/eriophyoidea/eriophyidae/eriophyinae/acerini/aceria/aceria-cephalonea/
https://www.naturespot.org.uk/species/aceria-cephalonea
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassArachnida
OrderEndeostigmata
FamilyEriophyidae
GenusAceria
SpeciesAceria cephalonea
Photographed in
Belgium