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The diving bell spider or water spider (Argyroneta aquatica) is the only species of spider known to live almost entirely under water. It is the only member of the genus Argyroneta . [ 6 ] When out of the water, the spider ranges in colour from mid to dark brown, although the hairs on the abdomen give it a dark grey, velvet -like appearance. [ 7 ]
The diving bell spider, Argyroneta aquatica, is a spider which lives entirely under water, even though it could survive on land. Since the spider must breathe air, it constructs from silk a habitat like an open diving bell which it attaches to an underwater plant.
Cybaeidae is a family of spiders first described by Nathan Banks in 1892. [1] The diving bell spider or water spider Argyroneta aquatica was previously included in this family, but is now in the family Dictynidae. [2] [3]
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Female water spiders (Argyroneta aquatica) build underwater "diving bell" webs which they fill with air and use for digesting prey, molting, mating and raising offspring. They live almost entirely within the bells, darting out to catch prey animals that touch the bell or the threads that anchor it.
The Japanese water spider spins four main kinds of silk: (1) silk used for the diving bell, (2) silk to anchor the diving bell to water plants, (3) silk for "walking" so as to get prey and mate, and (4) silk for the egg-cocoon. [5] The diving bell silk is "used for breathing," that is it serves to oxygenate the diving bell. [6]
The water spider Argyroneta aquatica build underwater "diving bell" webs that they fill with air and use for digesting prey and molting. Mating and raising the offspring happens in the female's bell. Mating and raising the offspring happens in the female's bell.
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