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Homilopscocidea is an 
infraorder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...
of Psocodea
Psocodea is a taxonomic group of insects comprising the bark lice, book lice and parasitic lice. It was formerly considered a superorder, but is now generally considered by entomologists as an order. Despite the greatly differing appearance of ...
(formerly Psocoptera
Psocoptera are a paraphyletic group of insects that are commonly known as booklice, barklice or barkflies. The name Psocoptera has been replaced with Psocodea in recent literature, with the inclusion of the former order Phthiraptera into Psoco ...
). It is probably a paraphyletic group, still in use for lack of a better solution. There are about 7 families and more than 1,200 described species in Homilopsocidea.
Families
These seven families belong to the infraorder 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, 2004Sources
*Lienhard, C. & Smithers, C. N. 2002. Psocoptera (Insecta): World Catalogue and Bibliography. Instrumenta Biodiversitatis, vol. 5. Muséum d'histoire naturelle, Genève.Further reading
* * * Insect infraorders Psocomorpha {{Psocoptera-stub