Broad-winged Barklouse vs Grain Booklouse

Side-by-side species comparison

Attribute Broad-winged Barklouse Grain Booklouse
Scientific Name Psococerastis gibbosa Liposcelis bostrychophila
Order Psocoptera Psocoptera
Family Psocidae Liposcelididae
Size 3-5 mm 0.7-1.2 mm
Habitat Parks Gardens
Diet Wood Feeders Fungus Feeders
Regions Europe Worldwide
Conservation Least Concern Least Concern

Broad-winged Barklouse

A large bark louse found on tree trunks across Europe. It has broad wings and a rounded body compared to most psocids.

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Did You Know?

It is one of the largest bark lice found in Europe.

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.