Trogiomorpha is one of the three major

suborder Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...

s of barklice, booklice, and parasitic lice in the

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Psocodea Psocodea is a taxonomic group of insects comprising the bark lice, book lice and parasitic lice. It was formerly considered a superorder, but is now generally considered by entomologists as an order. Despite the greatly differing appearance of p ...

(formerly

Psocoptera 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 Psocod ...

), alongside

Troctomorpha Troctomorpha is one of the three major suborders of Psocodea (formerly Psocoptera)(barklice, booklice, and parasitic lice), alongside Psocomorpha and Trogiomorpha. There are more than 30 families and 5,800 described species in Troctomorpha. T ...

and Psocomorpha. There are about 8 families and more than 430 described species in Trogiomorpha. Trogiomorpha is widely agreed to be the earliest diverging of the three suborders, and retains the most primitive characteristics. Trogium pulsatorium

Internal phylogeny

Here is a

cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to ...

showing the

phylogeny A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spe ...

of Psocodea, showing the position of Trogiomorpha:

Families

Psocomorpha contains 3

infraorder Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...

s and 5

extant Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extinct, ...

(living) families, as well as three identified extinct families: * Atropetae **

Archaeatropidae Archaeatropidae is an extinct family of Psocoptera in the suborder Trogiomorpha.A. Baz and V. M. Ortuño. 2000. Archaeatropidae, a new family of Psocoptera from the Cretaceous Amber of Alava, northern Spain. ''Annals of the Entomological Society o ...

Baz & Ortuño, 2000 **

Empheriidae Empheriidae is an extinct family of Psocoptera in the suborder Trogiomorpha. Genera * †'' Burmempheria'' Li et al. 2020 Burmese amber, Myanmar, Cenomanian * †'' Empheria'' Hagen 1856 Baltic amber, Eocene * †'' Empheropsocus'' Baz and Ort ...

Baz & Ortuño, 2000 ** Lepidopsocidae Enderlein, 1903 (scaly-winged barklice) **

Psoquillidae Psoquillidae is a family of bird nest barklice in the order Psocodea (formerly Psocoptera). There are about 8 genera and more than 30 described species in Psoquillidae. Genera These eight genera belong to the family Psoquillidae: * '' Balliella' ...

Lienhard & Smithers, 2002 (bird nest barklice) **

Trogiidae Trogiidae is a family (biology), family of granary booklice in the order (biology), order Psocodea (formerly Psocoptera). There are about 11 genera and more than 50 described species in Trogiidae. Genera These 11 genera belong to the family Tro ...

Roesler, 1944 (granary booklice) *

Psyllipsocetae Psyllipsocidae is a family of cave barklice in the order Psocodea. There are about 7 genera and more than 70 described species in Psyllipsocidae. Genera These eight genera belong to the family Psyllipsocidae: * '' Annulipsyllipsocus'' Hakim, Az ...

Psyllipsocidae Psyllipsocidae is a family of cave barklice in the order Psocodea. There are about 7 genera and more than 70 described species in Psyllipsocidae. Genera These eight genera belong to the family Psyllipsocidae: * '' Annulipsyllipsocus'' Hakim, Az ...

Lienhard & Smithers, 2002 (cave barklice) *

Prionoglaridetae 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 genu ...

(

paraphyletic In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...

) ** Prionoglarididae Azar, Huang & Nel, 2017 (large-winged psocids) *Unplaced: ** **

Cormopsocidae Cormopsocidae is an extinct family of Psocodea. All currently known members are from the mid-Cretaceous Burmese amber of Myanmar. The family is considered either to be the earliest diverging group of the suborder Trogiomorpha, or the sister grou ...

Yoshizawa & Lienhard, 2020 **

Internal phylogeny

Families

References

Further reading