An overview of Estonian woodlice (Isopoda, Oniscidea)

An overview of the Estonian terrestrial isopod fauna is given, based on literature data and material collected from 1984 to 2021. The identified material consisted of 10915 specimens belonging to 14 species and collected from 172 localities throughout Estonia. In combination with previous data from the literature data, there are now reliable records of 16 species of woodlice from Estonia. Two species, viz. Platyarthrushoffmannseggii Brandt, 1833 and Hyloniscusriparius (C. Koch, 1838), are new for the fauna. The latter has probably colonised Estonia recently and range expansions have been reported elsewhere. The data on Philosciamuscorum (Scopoli, 1763) are dubious, and this species is currently excluded from the Estonian list.