Common Rough Woodlouse Porcellio scaber


Common Rough Woodlouse Porcellio scaber
Common Rough Woodlouse Porcellio scaber
Common Rough Woodlouse Porcellio scaber immature
Common Rough Woodlouse Porcellio scaber juvenile
Common Rough Woodlouse Porcellio scaber heavily mottled

Class Malacostraca (Malacostracans)
Order Isopoda (Woodlice)
Family Porcellionidae
Species Porcellio scaber Latreille, 1804

Length up to 17 mm.

This woodlouse is narrower than the Common Shiny Woodlouse (Oniscus asellus), and greyer, although it can also appear mottled and lighter in colour. It has a rough surface, covered in tiny bumps. The end of the antennae (flagellum) is in two segments. This is the most often seen woodlouse species found in houses. One of the ‘famous 5’ very common British species most likely to be seen.

After dark it forages for dead organic matter on which it feeds. Seen all year round in a wide variety of habitats, including woodland, hedgerows, waste ground, and quite numerous in gardens. It shelters under rocks or stones, rotting logs or plant detritus. Also found inside dwellings, and can withstand more drier conditions compared to other species of woodlice.

Probably the most common woodlouse found in Britain. A native species and widespread throughout.

Discovered in back garden, South Staffordshire. © Peter Hillman.

Species recorded and verified via iRecord.