Armadillidium nasatum


This pill-woodlouse (to 12 mm) is similar to Armadillidium vulgare.  However the narrow protruding ‘snout’ is distinctive, as is the dark grey body marked with pale longitudinal dashes that give a semi-translucent appearance.  It forms an imperfect ball, with its antennae protruding, when disturbed.

Similar Species

Armadillidium vulgare

Identification difficulty
Recording advice

Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.


Often recorded from old quarries, garden centres and brownfield sites.

When to see it

All year round.

UK Status

Widespread, though sometimes local, mainly recorded in the southern half of Britain.

VC55 Status

Local but fairly well recorded in Leicestershire and Rutland.

Leicestershire & Rutland Map


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

UK Map

Species profile

Species group:
Woodlice, Crustaceans
Records on NatureSpot:
First record:
20/05/2024 (Nicholls, David)
Last record:
20/05/2024 (Nicholls, David)

Total records by month

% of records within its species group

10km squares with records

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