Unusual houses caddis

The bottoms of many freshwater — pure quick streams and weedy ponds to discover the amazing creatures that live in tubular houses, constructed them from different small particles lying on the bottom.

Depending on which small objects lie on the bottom, and depending on the type of insect houses can be built of different material. One is the construction of large grains of sand, others of pebbles or shells of small mollusks, often is the tube consisting of small pieces of twigs or dead parts of aquatic plants. "Building material" fastened to spider threads.

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1. Almost all the larvae of the caddis worm, build a shaped case or a house. The simplest form shaped case — reed tube.

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3. More complex construction — tubular case of the individual pieces of leaf that the larva gnaws and has a spiral line.

4. Depending on the species of caddisflies building material may vary. Sometimes construction material is imbricate, and they are either pieces of cane, or segments of leaves and fragments of bark.

5. There was even a new art form, larvae placed in the bowl and poured on the bottom of the colored stones and beads, and the larvae make a kind of jewelry

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9. But in nature to build their shaped case, the caddisflies use moss, twigs, bits of dead wood, fresh, woody twigs, pine needles, stems of the horsetail, mixed with other plant remains; they are attached to their dwelling and small shells, and the husks of sunflower.

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11. Sometimes buildings can be from crop residues, and small pebbles, for example, peas, small coils, young Lugano and other shellfish.

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13. In case of danger the larvae crawl into your house and plug the entrance with his head, armored with chitin.