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Hyptiotes Cavatus
''Hyptiotes cavatus'', the triangle weaver, is a species of cribellate orb weaver in the family of spiders known as Uloboridae Uloboridae is a family of non-venomous spiders, known as cribellate orb weavers or hackled orb weavers. Their lack of venom glands is a secondarily evolved trait. Instead, they wrap their prey thoroughly in silk, cover it in regurgitated digestive .... It is found in the United States and Canada. It uses an unusual hunting technique whereby it tightens up an anchor line of the web whilst waiting for prey. This effectively winds up and compresses the web. When prey touches the web, the spider releases the held anchor line, causing the web (and the spider) to spring forwards 2-3 cm at high speed. This causes up to 4 additional web strands to touch the prey, and the sudden stop when the web reaches the end of its elasticity then winds the prey further into the strands. This process has analogues to the techniques by humans used to power catapults and ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uloboridae
Uloboridae is a family of non-venomous spiders, known as cribellate orb weavers or hackled orb weavers. Their lack of venom glands is a secondarily evolved trait. Instead, they wrap their prey thoroughly in silk, cover it in regurgitated digestive enzymes, and then ingest the liquified body. Description They are medium to large spiders, with tree claws, which lack venomous glands. They build a spiral web using cribellate silk, which is quite fuzzy. They are usually dull in color, and are able to camouflage well into their surroundings. Usually having a humped opisthosoma, which is notoriously more humped than the carapace. Their rear eyes curving, in some species stronger than others. Hunting The hunting method of these spiders is quite unique among all animals in the kingdom. These spiders do not use an adhesive on their orb webs, but rather the very fine cribellate fibers on each strand of silk tend to ensnare prey. Since newly hatched uloborids lack the cribellum needed to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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