Psocoptera

phylum	Arthropoda	Psocoptera are an order of insects that are commonly known as booklice, barklice or barkflies. They first appeared in the Permian period, 295–248 million years ago. They are often regarded as the most primitive of the hemipteroids. For more information, visit the Wikipedia entry. Get back to Insects
Class	Insecta
superorder	Psocodea
order	Psocoptera

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