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An unidentified bark louse
""Body lice.jpg
Human "body louse
"Scientific classification "e
Kingdom: "Animalia
Clade: "Euarthropoda
Class: "Insecta
(unranked): "Paraneoptera
Superorder: Psocodea

Psocodea is a "taxonomic group of "insects comprising the "bark lice, "book lice and "true lice.[1] It was formerly considered a superorder, but is now generally considered by entomologists as an "order. Despite the greatly differing appearance of lice, they are believed to have evolved from within the former order "Psocoptera", which contained the bark lice and book lice.[2] Psocodea contains around 11,000 species, divided among seven suborders.[1][3]


  1. ^ a b P. J. Gullan & P. S. Cranston (2010). "Taxobox 17 – Psocodea: "Psocoptera" (bark lice and book lice)". The Insects: an Outline of Entomology (4th ed.). "John Wiley & Sons. p. 479. "ISBN "9781444317671. 
  2. ^ C. H. C. Lyal (1985). "Phylogeny and classification of the Psocodea, with particular reference to the lice (Psocodea: Phthiraptera)". "Systematic Entomology. 10 (2): 145–165. "doi:10.1111/j.1365-3113.1985.tb00525.x. 
  3. ^ "David Grimaldi & "Michael S. Engel (2005). "The paraneopteran orders". Evolution of the Insects. Cambridge Evolution Series. "Cambridge University Press. pp. 216–330. "ISBN "9780521821490. 

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