Sand-Case Caddisfly vs Tube-Making Caddis

Side-by-side species comparison

Attribute Sand-Case Caddisfly Tube-Making Caddis
Scientific Name Sericostoma personatum Psychomyia flavida
Order Trichoptera Trichoptera
Family Sericostomatidae Psychomyiidae
Size 10-14 mm 5-8 mm
Habitat Rivers & Streams Rivers & Streams
Diet Herbivores Gall Makers
Regions Europe North America
Conservation Least Concern Least Concern

Sand-Case Caddisfly

A caddisfly whose larvae build smooth, curved cases entirely from fine sand grains cemented with silk. Adults are dark with hairy wings.

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Did You Know?

The curved sand-grain cases built by these larvae are so precisely constructed they resemble tiny miniature architectural works.

Tube-Making Caddis

A small caddisfly whose larvae build silken tubes cemented to rock surfaces in rivers. The tubes create a network of galleries on submerged stones.

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Did You Know?

Entire rock surfaces can be covered in a patchwork of silken tubes built by dense colonies.