Trogiomorpha
Guides
Atropetae
Atropetae is an infraorder of small insects within the suborder Trogiomorpha of Psocodea, the order containing barklice, booklice, and parasitic lice. It was established by Pearman in 1936. Members of Atropetae are part of the earliest-diverging lineage of Psocodea, retaining primitive characteristics compared to other groups. The infraorder includes families of primarily free-living psocids found in cryptic habitats.
Pseudorypteryx mexicana
Pseudorypteryx mexicana is a species of trogiomorphan psocid (barklouse) in the family Psyllipsocidae, described by García-Aldrete in 1984. Members of this family are small, wingless insects typically associated with dark, humid microhabitats. The genus Pseudorypteryx is characterized by reduced wing venation and other troglomorphic adaptations. This species occurs in Mexico and the United States.
Psoquillidae
bird nest barklice
Psoquillidae is a family of small insects commonly known as bird nest barklice, classified in the order Psocodea. The family contains approximately 8 genera and more than 30 described species. These insects are primarily associated with bird nests, where they inhabit the accumulated organic material. The family was established by Lienhard & Smithers in 2002.
Psyllipsocidae
Cave Barklice
Psyllipsocidae is a family of small psocid insects commonly known as cave barklice, comprising approximately 7 genera and more than 70 described species. The family belongs to the suborder Trogiomorpha within the order Psocodea. Members of this family have been recorded across multiple biogeographic realms including West Palaearctic, Afrotropical, Australian, Nearctic, Neotropical, and Oriental regions. Some genera, such as Dorypteryx, exhibit notably wide geographic distributions. Several extinct genera are known from Cretaceous amber deposits.
Rhyopsocus celtis
Rhyopsocus celtis is a species of psocid (barklouse) in the family Psoquillidae, described by Mockford in 2016. The specific epithet "celtis" indicates its association with hackberry trees (Celtis spp.), which serve as its host. The species belongs to a small genus of psocids that inhabit dead or dying woody vegetation.
Soa flaviterminata
Soa flaviterminata is a species of booklouse in the family Lepidopsocidae, described by Enderlein in 1906. It belongs to the order Psocodea, a group of small, often overlooked insects that includes both parasitic lice and free-living barklice and booklice. The species is placed in the suborder Trogiomorpha, a lineage characterized by reduced wing venation and other derived features. Like other members of its family, it likely inhabits sheltered microhabitats in tropical or subtropical environments.
Speleketor
Speleketor is a genus of large-winged psocids (booklice/barklice) in the family Prionoglarididae. The genus was established by Gurney in 1943 and contains at least three described species. Members are found in the southwestern United States. Psocids in this genus are characterized by relatively large wings compared to body size, distinguishing them from many related taxa.
Speleketor flocki
Speleketor flocki is a species of cave-dwelling psocopteran insect in the family Prionoglarididae, described by Gurney in 1943. It belongs to the suborder Trogiomorpha, a group of psocids adapted to dark, humid environments. The genus Speleketor is specialized for cave habitats, with reduced or absent eyes and elongated appendages typical of troglobitic insects.