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In larger variants of arachnids, such as the tarantulas and hairy desert spiders, another mechanism used for locomotion is an elastic sclerite. [6] These sclerites are semi-rigid connectors between leg segments that allow storage and expending of potential energy.
Sprinting involves a quick acceleration phase followed by a velocity maintenance phase. During the initial stage of sprinting, the runners have their upper body tilted forward in order to direct ground reaction forces more horizontally. As they reach their maximum velocity, the torso straightens out into an upright position. The goal of ...
Jumping spiders are a group of spiders that constitute the family Salticidae. As of 2019 [update] , this family contained over 600 described genera and over 6,000 described species , [ 1 ] making it the largest family of spiders – comprising 13% of spider species. [ 2 ]
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
Ascyltus spiders typically employ one of three sets of responses to catch prey. The responses are a set of motor movements as follows: alignment pursuit - follow, run, stalk; orientation - alert, swivel; and capture - crouch and jump. The distance separating the spider from its prey are the determining factor in the response pattern used. [7]
Mimetic jumping spiders imitate the zig-zag trajectories of ants, which appears to be beneficial for avoiding predators that are from an elevated vantage point. [2] However, this may be an example of imperfect mimicry because the spiders display this behaviour in settings where ants do not.
The genus was established in 1878 by German arachnologist Friedrich Karsch.The fringed jumping spider (Portia fimbriata) is the type species.[1]Molecular phylogeny, a technique that compares the DNA of organisms to construct the tree of life, indicates that Portia is a member of a basal clade (i.e. quite similar to the ancestors of all jumping spiders) and that the Spartaeus, Phaeacius, and ...
Maevia intermedia is one of eight species of Salticidae, or jumping spider, in the genus Maevia, and is native to North America. [1] This species was originally reported by American Zoologist Robert D. Barnes in 1955 as a needed distinguishment between the similar-looking Maevia species, especially those found in the Americas.