Reuterella Barklouse vs Degeeri Booklouse

Side-by-side species comparison

Reuterella Barklouse

A small barklouse with distinctive pale spots on dark wings found on tree bark. It is common in mixed forests throughout Europe.

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This barklouse is one of the few European psocid species that can be identified in the field by its wing pattern alone.

A cosmopolitan booklouse commonly found in libraries, herbaria, and grain stores. It can cause significant damage to stored collections.

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It can build up huge populations undetected due to its tiny size.