All of the 2000 known species of Psocoptera range between small (never more than 6mm) to practically invisible. Several species have adapted to an indoor life living among dried material such as undisturbed books where they feed on minute quantities of mould growing on the paper.
Most of the outdoor species found in Britain belong to 2 families: the Psocidae and the Caeciliidae.
Ray Wilson owns the copyright of all images on this site.
They may not be used or copied in any form without prior written permission.