| Stenopsocidae | |
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| Graphopsocus cruciatus | |
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| Family: | Stenopsocidae |
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Stenopsocidae is a family of Psocoptera belonging to the suborder Psocomorpha, in the infraorder Caeciliusetae. Member of this family have an areola postica connected to the M vein by a crossvein. The family is composed of about 100 species.
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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. Their name originates from the Greek word ψῶχος, psokhos meaning gnawed or rubbed and πτερά, ptera meaning wings. There are more than 5,500 species in 41 families in three suborders. Many of these species have only been described in recent years.
Amphientomidae is a family of Psocoptera belonging to the suborder Troctomorpha. The presence of scales on their wings gives them a superficial resemblance to the unrelated family Lepidopsocidae and both families can pass for microlepidoptera to the untrained eye. The family comprises 100 species arranged in twenty genera.
Amphipsocidae is a family of hairy-winged barklice in the order Psocoptera. Most species are 3.0-4.5 mm long and have many setae (hairs) on the veins and margin of the forewing. The main veins of the forewing are usually lined with two rows of setae. Like the other members of the infra-order Caeciliusetae, they have a broad, flat labrum, with well defined edges.
Pseudocaeciliidae is a family of Psocoptera belonging to the suborder Psocomorpha. The name stems from a superficial resemblance to the distantly related family Caeciliusidae. The family is closely related to the families Philotarsidae and Calopsocidae.
Philotarsidae is a family of Psocoptera belonging to the suborder Psocomorpha. The family is closely related to the families Pseudocaeciliidae and Calopsocidae.
Psocetae is an infraorder of Psocoptera. It includes the families Hemipsocidae, Myopsocidae, Psilopsocidae and Psocidae.
Musapsocidae is a family of Psocoptera belonging to the suborder Troctomorpha. The pterostigma in their fore-wing has the characteristic of not being closed proximally. The family comprises 2 genera.
Troctopsocidae is a family of Psocoptera belonging to the suborder Troctomorpha. The family consists of six genera.
Liposcelididae is a family of booklice (Psocoptera) belonging to the suborder Troctomorpha. Members of this family are small and flattened, and often wingless.
Sphaeropsocidae is a family of Psocoptera belonging to the suborder Troctomorpha. Members of this family have reduced, coriaceous wings. The family comprises 22 known species in eight genera.
Peripsocidae is a family of Psocoptera belonging to the suborder Psocomorpha. Members of the family are characterised by their absence of an areola postica in their wings. Many of the recently described genera are closely allied to Peripsocus. The family includes more than 300 species.
Ectopsocidae is a family of Psocoptera belonging to the suborder Psocomorpha. Members of the family are characterised by their absence of an areola postica in their wings, like in the family Peripsocidae. The family includes fewer than 200 species, most of them in the genus Ectopsocus.
Archipsocidae is a family of Psocoptera belonging to the suborder Psocomorpha. Members of the family are characterised by their reduced wing venation. Some species are viviparous. The family includes about 80 species in five genera.
Trichopsocidae is a family of Psocoptera belonging to the suborder Psocomorpha. The family includes 11 species in two genera.
Hemipsocidae is an insect family of Psocoptera belonging to the infraorder Psocetae. Members of the family have the areola postica joined to the M vein by a crossvein, and their M vein is two-branched. This family comprises twenty-four species in three genera: Anopistoscena, Hemipsocus, and Metahemipsocus. They are commonly known as leaf litter barklice.
Psilopsocidae is a family of Psocoptera belonging to the infraorder Psocetae. Members of the family have a free areola postica and mottled wings. It is the only psocopteran family with records of wood-boring species. The family comprises one genus and seven species.
Mesopsocidae is a family of Psocoptera belonging to the suborder Psocomorpha. Members of the family are characterised by their free areola postica. The family includes more than 70 species.
Homilopscocidea is an infraorder of Psocoptera. 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.
Dasydemellidae is a family of Psocoptera belonging to the suborder Psocomorpha, in the infraorder Caeciliusetae. The family is composed of about 30 species.
Ptiloneuridae is a family of Psocoptera belonging to the suborder Psocomorpha. Like the other members of the infra-order Epipsocetae, they have a labrum with two sclerotized ridges.