Caddisfly vs Snail-Case Caddisfly

Side-by-side species comparison

Attribute Caddisfly Snail-Case Caddisfly
Scientific Name Limnephilus rhombicus Helicopsyche mexicana
Order Trichoptera Trichoptera
Family Limnephilidae Helicopsychidae
Size 10-15 mm body 5-7 mm
Habitat Ponds & Lakes Rivers & Streams
Diet Herbivores Omnivores
Regions Europe, North America North America, Central America
Conservation Least Concern Least Concern

Caddisfly

Moth-like adults with hairy wings held tent-like over the body. Aquatic larvae are famous architects that build portable cases from silk, pebbles, sand, leaves, and shells.

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Did You Know?

Artist Hubert Duprat gave caddisfly larvae gold flakes, pearls, and precious stones — the larvae incorporated them into their cases, creating tiny jeweled sculptures.

Snail-Case Caddisfly

A remarkable caddisfly whose larva builds a coiled sand-grain case resembling a tiny snail shell. Found in warm streams of the American Southwest.

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Did You Know?

Cases so closely resemble snail shells that they were originally described as a new genus of freshwater snail.