Two-Spotted Oak Buprestid vs Common Barklouse

Side-by-side species comparison

Attribute Two-Spotted Oak Buprestid Common Barklouse
Scientific Name Agrilus biguttatus Cerastipsocus venosus
Order Coleoptera Psocoptera
Family Buprestidae Psocidae
Size 8-13 mm 4.0-6.0 mm
Habitat Woodlands Woodlands
Diet Sap Feeders Wood Feeders
Regions Europe North America
Conservation Not Evaluated Not Evaluated

Two-Spotted Oak Buprestid

A slender, dark bronze-green jewel beetle with two white spots on its elytra. It is implicated in acute oak decline in Europe.

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Did You Know?

Its D-shaped exit holes in oak bark are a telltale diagnostic sign of its presence.

Common Barklouse

A large winged barklouse found in herds on tree trunks in eastern North America. It has prominent veined wings and feeds on algae and lichens.

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Did You Know?

These barklice form conspicuous herds of up to several hundred individuals that march across tree trunks in unison.