Furniture Booklouse vs Death Watch Barklouse

Side-by-side species comparison

Attribute Furniture Booklouse Death Watch Barklouse
Scientific Name Liposcelis paeta Trogium pulsatorium
Order Psocoptera Psocoptera
Family Liposcelididae Trogiidae
Size 0.7-1.0 mm 1.5-2 mm
Habitat Indoors Indoors
Diet Fungus Feeders Fungus Feeders
Regions Europe, North America, Oceania Europe, North America
Conservation Not Evaluated Least Concern

Furniture Booklouse

A minute pale booklouse often found in new homes and recently plastered walls. It feeds on microscopic mold in damp indoor environments.

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Did You Know?

Outbreaks in new buildings disappear once the structure dries out and mold can no longer grow on fresh plaster.

Death Watch Barklouse

A common indoor booklouse known for producing a quiet tapping sound by striking its abdomen against surfaces. It is found in old buildings and museums.

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Did You Know?

Its tapping sound was historically mistaken for a death omen, hence its common name.