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The cribellate spiders were the first spiders to build specialized prey-catching webs, later evolving into groups that used the spinnerets solely to make webs, instead using silk threads dotted with droplets of a sticky liquid (like pearls on a necklace) to capture small arthropods, and a few large species even small bats and birds.
Some small insects are thought to have evolved an appearance or behavioural traits that resemble those of jumping spiders and this is suspected to prevent their predation, specifically from jumping spiders. Some examples appear to be provided by patterns on the wings of some tephritid flies, [50] [51] the nymph of a fulgorid [52] and possibly ...
This type becomes substantially reduced in orb-web spiders, in which a collecting duct is lacking and the labyrinth apparently no longer has an excretory function." (Biology of Spiders, 1996) I would also like to point out that Biology of Spiders includes two diagrams similar to the one above. One shows the entire spider and one shows only the ...
The cribellate (lace-weaving) spider (Amaurobius) creates an untidy type of spider web from silk that looks blueish-grey when it is fresh. There is a retreat in the center where the spider waits ...
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 ...
The jumping spider Phidippus audax. The basal parts of the chelicerae are the two iridescent green mouthparts. The basal parts of the chelicerae are the two iridescent green mouthparts. The chelicerae ( / k ə ˈ l ɪ s ər iː / ) are the mouthparts of the subphylum Chelicerata , an arthropod group that includes arachnids , horseshoe crabs ...
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The orb-weaver spiders (family Araneidae) are the familiar builders of spiral wheel-shaped webs often found in gardens, fields and forests. The family is a large one, including over 2800 species in over 160 genera worldwide, making it the third largest known (behind Salticidae and Linyphiidae). The web has always been thought of as an ...