Tree-bark-inhabitant
Guides
Lachesilla pedicularia
cosmopolitan grain barklouse, cosmopolitan grain psocid
A small barklouse (1.5–2 mm) with near-global distribution. Frequently macropterous but brachypterous forms occur. Distinguished by abdominal brown stripes, hairless forewings, and characteristic wing venation. Found on tree bark, in stored grain, and human structures. Member of the pedicularia species group within Lachesillidae.