Psocomorpha is a suborder of barklice, booklice, and parasitic lice in the order Psocodea (formerly Psocoptera). There are more than 20 families and 5,300 described species in Psocomorpha. Phylogeny The below cladogram of Psocodea shows the position of Psocomorpha: Fossil record The oldest fossil record of the suborder is Burmesopsocus lienhardi from the mid-Cretaceous (early Cenomanian) Burmese amber, which is not assigned to any family. Classification Psocomorpha contains 6 infraorders and 26 families: Archipsocetae Archipsocidae Pearman, 1936 (ancient barklice) Caeciliusetae Amphipsocidae Pearman, 1936 (hairy-winged barklice) Asiopsocidae Mockford & Garcia Aldrete, 1976 Caeciliusidae Mockford, 2000 (lizard barklice) Dasydemellidae Mockford, 1978 (shaggy psocids) Paracaeciliidae Mockford, 1989 Stenopsocidae Pearman, 1936 (narrow barklice) Epipsocetae Cladiopsocidae Smithers, 1972 Dolabellopsocidae Eertmoed, 1973 Epipsocidae Pearman, 1936 (elliptical barklice) Ptiloneuridae Roesler, 1940 Spurostigmatidae Eertmoed, 1973 Homilopsocidea Ectopsocidae Roesler, 1944 (outer barklice) Elipsocidae Pearman, 1936 (damp barklice) Lachesillidae Pearman, 1936 (fateful barklice) Lesneiidae Schmidt & New, 2004 Mesopsocidae Pearman, 1936 (middle barklice) Peripsocidae Roesler, 1944 (stout barklice) Sabulopsocidae Schmidt & New, 2004 Philotarsetae Philotarsidae Pearman, 1936 (loving barklice) Pseudocaeciliidae Pearman, 1936 (false lizard barklice) Trichopsocidae Pearman, 1936 (lash-faced psocids) Psocetae Hemipsocidae Pearman, 1936 (leaf litter barklice) Myopsocidae Pearman, 1936 (mouse-like barklice) Psilopsocidae Roesler, 1944 Psocidae Hagen, 1865 (common barklice) References Further reading External links Insect suborders Psocodea