Aceria ilicis is a mite which causes felt galls to form on the leaves of Holm Oak. The upperside of the leaf may have a bulge about 2 to 3mm high, with a corresponding depression on the underside with a rusty brown erineum; usually several galls on a leaf; mites live amongst the hairs. The gall is seen more readily than the mite.
On the leaves of Holm Oak.
All year round.
Seems to be fairly frequent but under recorded in Britain.
Little recorded but probably fairly frequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015