Psocoptera are a paraphyletic group of insects that are commonly known as booklice, barklice or barkflies. The name Psocoptera has been replaced with Psocodea in recent literature, with the inclusion of the former order Phthiraptera into Psocodea.
Liposcelididae is a family of booklice of the order Psocodea, belonging to the suborder Troctomorpha. Members of this family are small and flattened, and often wingless. Mesothorax and metathorax fused in wingless forms.
Pachytroctidae is a family of thick barklice in the order Psocodea. There are about 15 genera and at least 90 described species in Pachytroctidae.
Archipsocidae is a family of barklice of the order Psocodea 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.
Elipsocidae is a family of Psocodea belonging to the infraorder Homilopsocidea. Members of the family have a free areola postica. Many species are apterous. The family includes about 130 species in more than 30 genera.
Caeciliusidae is a family of Psocodea belonging to the suborder Psocomorpha. The family was once named Caeciliidae, but the latter name was changed because of homonymy with the amphibian family Caeciliidae. The subfamily Paracaeciliinae was formerly in Caeciliusidae, but it has been elevated to family rank, Paracaeciliidae.
Ectopsocus is a genus of psocoptera in the family Ectopsocidae.
Tapinella is a genus of thick barklice in the family Pachytroctidae. There are at least 40 described species in Tapinella.
Trichadenotecnum is a genus of insects in the order Psocoptera, the booklice, barklice, and bookflies. It is one of the largest genera, including over 200 described species.
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 Psoquillidae.
Liposcelis is a genus of insects in the order Psocoptera, the booklice and barklice. There are about 126 species. Many species are associated with human habitation and several are well known as pests of stored products. The genus is distributed nearly worldwide.
Ptyctini is a tribe of common barklice in the family Psocidae. There are about 6 genera and at least 20 described species in Ptyctini.
Psocinae is a subfamily of common barklice in the family Psocidae. There are about 11 genera and at least 40 described species in Psocinae.
Echmepteryx is a genus of scaly-winged barklice in the family Lepidopsocidae. There are more than 80 described species in Echmepteryx.
Soa is a genus of scaly-winged barklice in the family Lepidopsocidae. There are about six described species in Soa.
Lichenomima is a genus of mouse-like barklice in the family Myopsocidae. There are more than 40 described species in Lichenomima.
Embidopsocus is a genus of booklice in the family Liposcelididae. There are more than 40 described species in Embidopsocus.
Psyllipsocus is a genus of cave barklice in the family Psyllipsocidae. There are more than 50 described species in Psyllipsocus.
