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A classic circular form spider's web Infographic illustrating the process of constructing an orb web. A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning 'spider') [1] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. [1] This diverse, globally distributed family includes over 3,000 species in 124 genera , [ 2 ] and is the most common arthropod found in human dwellings throughout ...
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The spinnerets of an Australian garden orb weaver spider. Black spinneret of Phidippus adumbratus visible below red abdomen. A spinneret is a silk-spinning organ of a spider or the larva of an insect.
The triangulate cobweb spider is known to prey on many other types of arthropods, ants (including fire ants), other spiders, pillbugs, and ticks. It preys on several other spiders believed to be harmful to humans, including the brown recluse. Anything it catches in the web it preys upon.
It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than orb-weaver spiders. Spider-like arachnids with silk-producing spigots ( Uraraneida ) appeared in the Devonian period , about 386 million years ago , but these animals apparently lacked spinnerets.
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The Araneomorphae, to the contrary, include the weavers of spiral webs; the cobweb spiders that live in the corners of rooms, and between windows and screens; the crab spiders that lurk on the surfaces of flowers in gardens; the jumping spiders that are visible hunting on surfaces; the wolf spiders that carpet hunting sites in sunny spots; and ...