Trichoniscoides albidus (Budde-Lund, 1880)

Common name

Rough Pygmy Woodlouse

Status

GB IUCN status: Least Concern

Identification

In size, shape and colour this small woodlouse is similar in appearance to the ubiquitous Trichoniscus pusillus.  It differs in having a coarsely tuberculate body surface, eye comprising a single ommatidium, and all eye and body pigments are rapidly lost in alcohol.

J.P. Richards
J.P. Richards
Keith Lugg

Distribution and Habitat

In southern and eastern England it is widespread, but probably under-recorded, and appears to be rare in Ireland.

It inhabits damp friable soils in a wide range of habitats, including wet deciduous woodland, alluvial meadows, banks of streams and ditches, seepages on ‘soft’ slumping cliffs, and occasionally churchyards and farmyards.

It is elusive and characteristically found with difficulty on the underside of embedded stones and dead wood or amongst damp rubble.  It is typically found with Trichoniscus pusillus agg., T. pygmaeus and Haplophthalmus spp. 

Distribution

Reference

Gregory, S. (2009) Woodlice and Waterlice (Isopoda: Oniscidea & Asellota) in Britain and Ireland.  Field Studies Council/Centre for Ecology & Hydrology.

idBmigTaxa

72

BRC Code

Cru_1722