Elongate Paederine vs Snail-Case Caddis

Side-by-side species comparison

Attribute Elongate Paederine Snail-Case Caddis
Scientific Name Lathrobium elongatum Helicopsyche borealis
Order Coleoptera Trichoptera
Family Staphylinidae Helicopsychidae
Size 7-9 mm 5-7 mm
Habitat Rivers & Streams Rivers & Streams
Diet Root Feeders Omnivores
Regions Europe North America
Conservation Least Concern Least Concern

Elongate Paederine

A very slender, reddish-brown paederine rove beetle that lives deep within waterlogged soils near streams. Its extremely narrow body is adapted for burrowing through saturated soil.

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Did You Know?

This beetle can survive prolonged submersion in water, breathing through a plastron of air trapped by microscopic hairs on its body surface.

Snail-Case Caddis

A remarkable caddisfly whose larvae build coiled cases from sand grains that closely resemble tiny snail shells. It is widespread in North American streams.

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Did You Know?

Its spiral case is so convincing that early naturalists classified the larvae as snails rather than insects.