Barklouse (or Psocid)

Typically found on tree trunks, under rocks, or in damp indoor environments near organic material.

Feed on fungi, algae, lichen, and organic debris like pollen or starch.

Often found in small groups; some species spin fine silk webs on bark for protection. They undergo simple metamorphosis (egg to nymph to adult).

Harmless to humans; they provide ecosystem benefits by breaking down organic matter and grazing on fungi, though they can be minor household pests if moisture levels are high.