Psocoptera are an order of insects that are commonly known as booklice or barklice. They first appeared in the Permian era, 295-248 million years ago. They are often regarded as the most primitive of the hemipteroids. Their name originates from the Greek word psokos meaning gnawed or rubbed and ptera meaning wings. There are more than 5.500 species in 41 families in 3 suborders. Many of these species have been described in recent years [1]. Image File history File linksMetadata Psocoptera. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Myxozoa (slime animals) Superphylum Deuterostomia (blastopore becomes anus) Chordata (vertebrates, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... Orders Palaeodictyoptera - extinct Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Blattodea (cockroaches) Mantodea (mantids) Isoptera (termites) Zoraptera Grylloblattodea (rock crawlers) Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, crickets, katydids) Phasmatodea (walking sticks, timemas) Embioptera (webspinners) Mantophasmatodea (gladiators) Superorder Hemipterodea Psocoptera (booklice, barklice) Phthiraptera (lice) Hemiptera (true bugs) Thysanoptera (thrips) Superorder... Orders Blattodea (cockroaches) Mantodea (mantids) Isoptera (termites) Zoraptera Grylloblattodea Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, crickets, katydids) Phasmatodea (walking sticks, timemas) Embioptera (webspinners) Mantophasmatodea (gladiators) Superorder Hemipterodea Psocoptera (booklice, barklice) Phthiraptera (lice) Hemiptera (true bugs) Thysanoptera (thrips) Superorder Endopterygota Miomoptera - extinct Megaloptera (alderflies, etc. ... Classes & Orders See taxonomy Insects are invertebrate animals of the Class Insecta, the largest and (on land) most widely-distributed taxon within the phylum Arthropoda. ... The Permian is a geologic period that extends from about 299. ...
They range in size from 1 to 10 mm in length. A millimetre (American spelling: millimeter), symbol mm is an SI unit of length that is equal to one thousandth of a metre. ...
They receive their common name because members of this order are commonly found amongst old books - they feed upon the paste used in binding. Look up book in Wiktionary, the free dictionary. ... This article is in need of attention. ... Binding can mean: Binding (computer science) - a tie (for example) to certain names in programming languages Binding (knot) - A type of knot Binding (linguistics) - a property relating to anaphors (pronouns and R-expressions) and c-command Bookbinding - the protective cover of a book; and the art of constructing this Ski...
No member of this order is currently at conservation risk.
Sources
Firefly Encyclopedia of Insects and Spiders, edited by Christopher O'Toole, ISBN 1-55297-612-2, 2002
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