Dark-Horned Casemaker vs Bark-crevice Rove Beetle

Side-by-side species comparison

Attribute Dark-Horned Casemaker Bark-crevice Rove Beetle
Scientific Name Psilotreta labida Nudobius lentus
Order Trichoptera Coleoptera
Family Odontoceridae Staphylinidae
Size 10-14 mm 6-9 mm
Habitat Woodlands Woodlands
Diet Detritivores Predators
Regions North America Europe, Northern Asia
Conservation Least Concern Least Concern

Dark-Horned Casemaker

A North American caddisfly building curved tubular cases from sand grains. Larvae are found in small shaded woodland streams.

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Did You Know?

Adults are entirely nocturnal and are rarely seen despite being locally common.

Bark-crevice Rove Beetle

A slender, flattened rove beetle adapted for life under tight-fitting bark. Its compressed body and strong legs allow it to navigate the narrow subcortical habitat where it hunts bark beetle larvae.

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Did You Know?

This beetle is considered a natural enemy of the European spruce bark beetle and helps regulate bark beetle populations in managed forests.