Psocoptera families

Liposcelididae (historically often referred to as "Liposcelidae") is a family of booklice of the order Psocodea (formerly Psocoptera), belonging to the suborder Troctomorpha. Members of this family are small and flattened, and often wingless. Mesothorax and metathorax fused in wingless forms.

Philotarsidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. The family is closely related to the family Pseudocaeciliidae, both within the infraorder Philotarsetae.

thumb|Echmepteryx hamiltoni Lepidopsocidae are an insect family of bark lice belonging to the suborder Trogiomorpha. Colloquially, Lepidopsocidae are referred to as the Scaly-winged Barklice. There are more than 220 species described worldwide. Phylogenetic DNA analysis of relationships between families in Trogiomorpha propose that Lepidopsocidae is monophyletic, meaning that the taxa within all share a common ancestor. This is supported morphologically by the presence of scales and setae covering the body and forewings of Lepodopsocids. Sister families of Lepidoposcidae include Trogiidae and

Pseudocaeciliidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. The name stems from a superficial resemblance to the distantly related family Caeciliusidae (formerly Caeciliidae). The family is closely related to the family Philotarsidae, both within the infraorder Philotarsetae.

thumb|Trichadenotecnum sexpunctatum thumb|Trichadenotecnum sexpunctatum

Lachesillidae (or fateful barklice) is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. Members of the family are characterized by a rounded, free areola postica in their wings. Males have diverse sclerotized genitalic structures. The family includes more than 400 species, most of them in the genus Lachesilla.

Amphientomidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Troctomorpha. The presence of scales on their wings gives them a superficial resemblance to the unrelated family Lepidopsocidae (within Trogiomorpha), and both families can pass for microlepidoptera to the untrained eye. The family comprises 100 species arranged in twenty genera.

Ectopsocidae is a family of Psocodea (formerly Psocoptera) (book lice or bark lice) belonging to the suborder Psocomorpha. The family includes fewer than 200 species, most of them in the genus Ectopsocus.

Myopsocidae is a family of mouse-like barklice, belonging to the infraorder Psocetae of the order Psocodea (formerly Psocoptera). This family is closely related to Psocidae, with which it shares similar wing-venation, but from which it is distinguished by three-segmented tarsi.

Pachytroctidae is a family of thick barklice in the order Psocodea (formerly Psocoptera). There are about 15 genera and at least 90 described species in Pachytroctidae.

Amphipsocidae is a family of hairy-winged barklice in the order Psocodea (formerly 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.

Elipsocidae is a family of Psocodea (formerly Psocoptera) belonging to the infraorder Homilopsocidea. Members of the family have a free areola postica. Many species are apterous (without wings). The family includes about 130 species in more than 30 genera.

Peripsocidae is a family of Psocodea (formerly 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.

Archipsocidae is a family of barklice of the order Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. Members of the family are characterized by their reduced wing venation. Some species are viviparous. The family includes about 80 species in five genera.

Compsocidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Troctomorpha. The family comprises two extant species in two genera, both found in Mesoamerica. Compsocus elegans is found in Mexico and Central America, while Electrentomopsis variegata is found in Mexico. The antennae of each species have 13 or 14 segments. Two extinct genera, Burmacompsocus and Paraelectrentomopsis are known from the Cenomanian aged Burmese amber of Myanmar and Albian aged Spanish amber.

Hemipsocidae is an insect family of Psocodea (formerly 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.

Ptiloneuridae (literally "downy veins") is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. Like the other members of the infraorder Epipsocetae, they have a labrum with two sclerotized ridges.

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.

Epipsocidae is an insect family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha, that includes, among others, the genera Bertkauia, Epipsocus, Epipsocopsis, Goja, and the New Guinean endemic Dicropsocus. It includes 16 genera with more than 140 species. The only European species in the family is the (almost always) apterous Bertkauia lucifuga. Like the other members of the infraorder Epipsocetae, they have a labrum with two sclerotized ridges. Epipsocids are barklice found primarily in tropical regions, and one of their distinguishing characteristics is the hairy ventra

Sphaeropsocidae is a family of Psocodea (formerly Psocoptera), belonging to the suborder Troctomorpha. Females of this family have reduced, beetle-like elytra, and lack hindwings, with males have either small or absent wings. The family comprises 22 known species (four of them fossils) in eight genera.

Dasydemellidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha, in the infraorder Caeciliusetae. The family is composed of about 30 species.

Musapsocidae is a family of Psocodea (formerly 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.

Mesopsocidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. Members of the family are characterized by their free areola postica. The family includes more than 70 species.

Prionoglarididae is a family of the order Psocodea (formerly Psocoptera) that are barklice characterized by the reduction or simplification of the lacinia in adults and the specialised form of the male genitalia. It contains the only known genus of animals, Neotrogla, where females possess a penis-like organ and take on typical male sex roles.

Trichopsocidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. The family includes 11 species in two genera.

Troctopsocidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Troctomorpha. The family consists of seven genera.

Cladiopsocidae is a family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha. Like the other members of the infraorder Epipsocetae, they have a labrum with two sclerotized ridges.

Psilopsocidae is a family of Psocodea (formerly 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.

Asiopsocidae is a family of Psocodea (formerly Psocoptera) belonging to the infraorder Caeciliusetae. The family is composed of 14 known species of barklice in three genera: Asiopsocus, Notiopsocus, and Pronotiopsocus. One species from each genus has been found in the United States.

Dolabellopsocidae is an insect family of Psocodea (formerly Psocoptera) belonging to the suborder Psocomorpha, that includes the genera Isthmopsocus, Dolabellopsocus, and Auroropsocus. Like the other members of the infraorder Epipsocetae, they have a labrum with two sclerotized ridges. The family, which contains more than 40 known species, was first identified by Eertmoed in 1973.