This very small species, reaching 3 mm. In life it is mottled dark reddish-brown and the eye is composed of three ommatidia, thus resembling Trichoniscus pusillus s.l., but differs in the body being covered with coarse tubercles. However, there are other similar species, such as Styloniscus mauritiensis and S. spinosus occurring in heated glasshouses.
Identification should be based on a male specimen.
Distribution and Habitat
It has been collected from inside several heated glasshouses, including those at Glasgow, Edinburgh, Dublin and Kew Botanic Gardens.
This species originates from eastern Spain, but has been introduced, mainly in glasshouses, all over the world.