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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 ]
In 1988, Australian screenwriter Andrew Wright participated in a diving expedition to the Pannikin Plains cave system, which turned to disaster when flash floods collapsed the entrance to the caves.
[5] [6] [7] However, most of these spiders still need a mostly carnivorous diet to survive, and lab studies have shown that they become unhealthy when fed only plants. [6] One exception is a species of jumping spider called Bagheera kiplingi, which is largely herbivorous, feeding mainly on the sugar rich Beltian bodies produced by acacia plants ...
While the earliest chelicerates and the living Pycnogonida (if they are chelicerates [70]) and Xiphosura are marine animals that breathe dissolved oxygen, the vast majority of living species are air-breathers, [82] although a few spider species build "diving bell" webs that enable them to live under water. [84]
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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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Bell and his colleagues put forward the hypothesis that ballooning first appeared in the Cretaceous. [3] A 5-year-long research study in the 1920s–1930s revealed that 1 in every 17 invertebrates caught mid-air is a spider. Out of 28,739 specimens, 1,401 turned out to be spiders. [1]