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(a): Larva of Beraeodes minutus (Linnaeus, 1761) (Brevitentoria: Beraeidae) and its case composed of fine sand. (b): Larva of Triaenodes bicolor (Curtis, 1834) (Brevitentoria: Leptoceridae) in its case composed of pieces of angiosperm leaves. The rows of long hairs on the legs are used for swimming. Both figures © W. Graf.
