Water Spider

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Water Spider


(Argyroneta aquatica), an arthropod of the family Argyronetidae; the only representative of the order Araneida to live in fresh water. The body of the male is 15-20 mm long, the body of the female 12 mm. The cephalothorax is reddish brown, and the abdomen is covered with velvety hairs. When the water spider is submerged, these hairs retain a layer of air (for this reason the animal’s body appears silvery) which the spider breathes underwater (water spiders more often breathe through the skin than with the lungs).

Water spiders are common in Europe. They live in bodies of water rich in vegetation and feed on small invertebrates and insect larvae. The bell-shaped underwater nest is filled with air; the spider carries it on its body. The bell is held underwater by a web, with which the spider fastens the nest to vegetation. Here the spider eats its prey and reproduces; the female places a cocoon containing eggs in the bell and guards it until the young hatch.


Ivanov, A. V. Pauki, ikh stroenie, obraz zhizni i znachenie dlia cheloveka. Leningrad, 1965.


References in periodicals archive ?
Our research and development team of engineers and chemists are extremely talented and were able to design a product specifically for the Under Armour Water Spider.
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NOTE: All facts in this column were confirmed by the editorial assistant, except for the one about the water spider.
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But he seemed to develop web feet as he battled water spiders, eels and mud crabs to win eight out of eight stars for the camp.