Epipsocidae is a family of Psocoptera

Psocoptera

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 psokos meaning...

 belonging to the suborder Psocomorpha, that includes, among others, the genera Epipsocus, Epipsocopsis, and the New Guinean endemic Dicropsocus

Dicropsocus

Dicropsocus is a genus in the Epipsocidae family, with three described species, all endemic to New Guinea and the neighbouring islands. The genus is characterised by a peculiar wing venation, with many supernumerary cells....

. The only European species in the family is the (almost always) apterous Bertkauia lucifuga. Like the other members of the infra-order Epipsocetae, Epipsocidae have a labrum with two sclerotized ridges.

Sources

• Lienhard, C. & Smithers, C. N. 2002. Psocoptera (Insecta): World Catalogue and Bibliography. Instrumenta Biodiversitatis, vol. 5. Muséum d'histoire naturelle, Genève.