Grain Booklouse vs Long-winged Barklouse

Side-by-side species comparison

Attribute Grain Booklouse Long-winged Barklouse
Scientific Name Liposcelis bostrychophila Ectopsocus briggsi
Order Psocoptera Psocoptera
Family Liposcelididae Ectopsocidae
Size 0.7-1.2 mm 2-3 mm
Habitat Gardens Woodlands
Diet Fungus Feeders Herbivores
Regions Worldwide Europe, North America, Australasia
Conservation Least Concern Least Concern

Grain Booklouse

A tiny wingless booklouse that is one of the most common stored-product pests worldwide. It thrives in warm humid environments with starchy materials.

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Did You Know?

It reproduces by parthenogenesis, meaning populations consist entirely of females.

Long-winged Barklouse

A widespread bark louse found on tree trunks and dead leaves across Europe and introduced to other continents. It has long narrow wings.

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Did You Know?

It has successfully colonized multiple continents through accidental human transport.