Wasp Nest Beetle vs Large-winged Barklouse

Side-by-side species comparison

Attribute Wasp Nest Beetle Large-winged Barklouse
Scientific Name Metoecus paradoxus Psocus leidyi
Order Coleoptera Psocoptera
Family Ripiphoridae Psocidae
Size 8-12mm 3.0-5.0 mm
Habitat Woodlands Woodlands
Diet Parasitoids Wood Feeders
Regions Europe North America
Conservation Least Concern Not Evaluated

Wasp Nest Beetle

A bizarre wedge-shaped beetle that develops as a parasitoid inside social wasp nests. Males have feathery antennae.

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Did You Know?

One of the most unusual beetles in Europe, spending its entire larval development inside live wasp nests.

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.