A portable caseSourced
A larva carries a little shelter of stones and leaves
Many caddisfly larvae construct silk tubes reinforced with material such as sand, stones or leaf pieces. The case protects the larva while moving with it. Different groups use different materials and designs. What looks like debris on the stream bed may be an occupied portable shelter.
The tiny tube comes with a resident.
Summary / translation: Unbubly · CC BY-SA 4.0
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Caddisfly · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-05