Pleasing Lacewing vs Cylindrical Bark Hister

Side-by-side species comparison

Attribute Pleasing Lacewing Cylindrical Bark Hister
Scientific Name Nallachius americanus Teretrius fabricii
Order Neuroptera Coleoptera
Family Dilaridae Histeridae
Size 8-12 mm 2-3 mm
Habitat Woodlands Woodlands
Diet Wood Feeders Wood Feeders
Regions North America Europe, North America (introduced)
Conservation Data Deficient Least Concern

Pleasing Lacewing

A small and uncommon lacewing with feathery antennae in males. Larvae develop under bark feeding on wood-boring insect larvae.

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Did You Know?

Male pleasing lacewings have elaborate feathered antennae used to detect female pheromones over long distances.

Cylindrical Bark Hister

A tiny, cylindrical hister beetle that lives under bark of dead trees. Its elongated shape allows it to follow bark beetle tunnels.

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Did You Know?

It was intentionally introduced to North America from Europe to help control the smaller European elm bark beetle.