Alternative names
White Slug Mite

The tiny white mite Riccardoella is a parasite of molluscs. There are two very similar species which can't easily be separated.

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.


On the bodies of host species.

When to see it

Some research seems to suggest that it may have peaks around January, April and October, but lack of records means that this is yet to be confirmed.

UK Status

Little recorded in Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map