Large-winged Barklouse vs Web-spinning Barklouse

Side-by-side species comparison

Attribute Large-winged Barklouse Web-spinning Barklouse
Scientific Name Psocus leidyi Archipsocus nomas
Order Psocoptera Psocoptera
Family Psocidae Archipsocidae
Size 3.0-5.0 mm 1.5-2.5 mm
Habitat Woodlands Forests
Diet Wood Feeders Omnivores
Regions North America Southeastern United States, Central America
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.

Web-spinning Barklouse

A bark louse known for spinning communal silk webs over tree bark in tropical and subtropical regions. Large colonies can cover entire tree trunks.

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Did You Know?

Their communal silk webs can cover entire tree trunks like a ghostly shroud.