Psocids are common but harmless insects, Yellow, brown, white or grey in colour and only 1 mm long, most of the species are wingless. They are usually found in dark humid places such as kitchen cupboards, bathrooms, on drying plaster in new houses and on old books and stored papers in libraries and storage areas, where they feed on microscopic moulds.
It should be noted that complete riddance is often difficult. Thoroughly air and dry the infested area as this will prevent the development of the microscopic moulds that Psocids feed on. Clean the infested area with a dry cloth or by vacuuming. Where the infestation is extensive, a residual insecticide can be applied to the cracks and crevices of the affected area.