psocid

noun

1. Any insect of the family Psocidae.

   “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.”