Vertagopus pseudocinereus n.sp. is described from specimens collected under bark on dead Pinus silvestris and Betula pubescens at Pasvik, Finnmark County, North Norway. The species was also observed on imported timber at Spitsbergen. The morphological difference from V. cinereus (Nicolet) mainly the absence of ventral setae from the thora and second abdominal segment. Male V. pseudc cinereus are dimorphic with shortened abdomina macrochaetae in the reproductive phase.