psocid

1. (entomology) Any insect of the family Psocidae.Examples: "Psocids (New 1987) are free-living insects that feed on microflora and organic debris on surfaces of vegetation or on other surfaces.[…]Psocids are frequently gregarious as nymphs or adults and may even group together under a communal web."; "The houe psocid, Liposcelis bostrychophilus, is a tropical species, but it occurs primarily in households in temperate regions."; "Nymphs and adults of psocids are regularly found in caves. Psyllipsocidae (in Europe the most common psocid in caves is Psyllipsocus ramburii) and Prionoglarididae are perhaps particularly characteristic of caves.[…]In the case of psocids, it has been suggested that the Psyllipsocidae (an ancient group) may have survived by avoiding competition with more recent forms by inhabitibg caves or similar habitats."Synonyms: bark fly, bark louse, book louse, psocopteran