Large-winged Barklouse vs Ruddy Barklouse

Side-by-side species comparison

Attribute Large-winged Barklouse Ruddy Barklouse
Scientific Name Psocus leidyi Elipsocus hyalinus
Order Psocoptera Psocoptera
Family Psocidae Elipsocidae
Size 3.0-5.0 mm 2-3 mm
Habitat Woodlands Forests
Diet Wood Feeders Wood Feeders
Regions North America Europe
Conservation Not Evaluated Least Concern

Large-winged Barklouse

A conspicuous barklouse with large patterned wings found on deciduous trees. Adults are active in late summer and autumn.

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Did You Know?

Despite their delicate appearance, winged barklice are surprisingly strong fliers and are attracted to lights at night.

Ruddy Barklouse

A delicate bark louse with translucent wings found in European forests. It lives on lichens and algae growing on tree trunks.

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Did You Know?

Its nearly transparent wings make it almost invisible when resting on pale lichen.