Alternative spelling: Psocina
Invalid subtaxa: Copeognatha Tillyard 1926, Psocoptera [replaced name]
Full reference: W. Hennig. 1966. Phylogenetic Systematics 1-263
Parent taxon: Neoptera according to B. Misof et al. 2014
See also Azar et al. 2010, Carpenter 1992, Kukalová-Peck and Lawrence 2004, Martynov 1926, Martynov 1928, Mockford et al. 2013, Nel et al. 2012, Prokop et al. 2017, Scudder 1890 and Tillyard 1935
Sister taxa: Ampelipteridae, Apheloneuridae, Archaemiopteridae, Archipanorpidae, Asiuropidae, Baryshnyalidae, Blattoneoptera, Boltonocostidae, Choristosialidae, Clareocercaria, Controversala, Dictyophara scudderi, Endoneoptera, Eopanorpella, Exopterygota, Gelasopteridae, Glosselytrodea, Hemineoptera, Holometabola, Mesophthiridae, Metropatoridae, Metropatorites, Micropalentomidae, Mixotermitoidea, Naucoris crassus, Oiophassus, Orthoneoptera, Palaeoheteroptera, Palaeonepidoideus, Paraneoptera, Perielytridae, Permembiidae, Permosialidae, Polyneoptera, Prosigara, Saurodectidae, Sibosmylina, Sinembiidae, Sphalmatoblattina, Sycopteridae, Sycopteron, Synomaloptilidae, Tillyardites, Trachopterygidae, Triadochorista, Trichorthophlebia, Uninervidae
Subtaxa: Caeciliidae Concavapsocus Globopsocus Huaxiapsocus Miotroctes Parapsocida Paropsocus Polypsocidae Psococicadellopsis Psocomorpha Troctomorpha Trogiomorpha
Ecology: