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Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats or crossing long gaps.
Hunting on land: Jumping spiders, Wolf spiders and many other types of spiders hunt freely. Some of these have enhanced eyesight, sometimes approaching that of a pigeon (although with a much smaller field of vision). They are generally robust and agile.
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]
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 ...
Phidippus clarus, also known as the brilliant jumping spider, is a species of jumping spider (family Salticidae) found in old fields throughout eastern North America. It often waits upside down near the top of a plant, which may be useful for detecting prey, and then quickly jumps down before the prey can escape.
Most species of jumping spiders appear to be cursorial (adapted to run [20]), allowing them to hunt insects without using webs. However, species of the genus Portia prefer to hunt other spiders, often invading their victims' webs. [7] Some Portia species including P. africana, also efficiently hunt other jumping spiders. [10]: 424, 432, 434
Like all other jumping spiders, M. intermedia possesses eyes of differing sizes in anterior, lateral, and posterior positions. [2] The nature of the eye formation and composition has given rise to some of the most elaborate vision-dependent hunting strategies observed in the animal kingdom [ 3 ]
The prey used were: unspecified jumping spiders; amaurobiid and theridiid web-based spiders; and houseflies. [ 11 ] : 428 P. fimbriata in all regions fix their own webs to solid surfaces such as rocks and tree trunks and boughs, while some other Portia species often fix their webs to pliant stems and leaves and on the lower branches of trees.