Snail-Case Caddis vs Large Pale Clothes Moth

Side-by-side species comparison

Attribute Snail-Case Caddis Large Pale Clothes Moth
Scientific Name Helicopsyche borealis Tinea pallescentella
Order Trichoptera Lepidoptera
Family Helicopsychidae Tineidae
Size 5-7 mm 7-11 mm body; 15-22 mm wingspan
Habitat Rivers & Streams Woodlands
Diet Omnivores Omnivores
Regions North America Europe, North America
Conservation Least Concern Least Concern

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.

Large Pale Clothes Moth

A pale straw-colored clothes moth that is larger than the common webbing clothes moth. Its larvae prefer coarser animal fibers and are frequently found in old birds' nests.

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Did You Know?

It is more commonly associated with roof spaces and bird nests than with clothing in wardrobes.