Species of the Month May 2020


Rosy Woodlouse Androniscus dentiger


This colourful woodlouse species can be found in semi-natural habitats including many gardens, where it favours damp locations such as under rocks and logs. It is often overlooked due to its small size (5mm), but the bright pinkish colouring makes it fairly unmistakable. It has a yellow stripe along the midline, black eyes and a coarsely bumped texture.

It is widespread throughout Wales, but we only have 102 records in the SEWBReC database (view the Wales wide distribution on Aderyn).

You can find more information and photos of the species from NatureSpot, Eakring Birds and British Myriapod and Isopod Group [BMIG].

If you spot Rosy Woodlouse during May (or at any other time of year), please send us the record, ideally via our Species of the Month form on SEWBReCORD (nb. you will need to be signed into SEWBReCORD to use this link). Instructions on how to submit records are available here.

*COVID 19 note: we do not advocate unnecessary travel for recording purposes during this time of crisis. We still encourage you to look for the Species of the Month, but please do so in a safe, socially distant and local manner, e.g. concentrating on your own garden.*