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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 ]
All spiders possess photosensitive microvilli which have the capacity to be sensitive to the polarisation of light, as they preferentially absorb light oscillating parallel to their long axis. These microvilli are arranged orthogonally in the eyes of several families, including jumping spiders , wolf spiders , and nursery web spiders .
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]
Sometimes one pair of eyes is better developed than the rest, or even, in some cave species, there are no eyes at all. Several families of hunting spiders, such as jumping spiders and wolf spiders, have fair to excellent vision. The main pair of eyes in jumping spiders even sees in color. [9]
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.
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.
Euophrys omnisuperstes does not show any obvious adaptations for survival in the extreme conditions of high mountains, being similar to jumping spiders living in more temperate environments. [6] Swan noted that daytime temperatures at high elevations can actually be higher than lower down, because of the reduction in cloud cover and the ...
Lyssomanes is a spider genus of the family Salticidae (jumping spiders), ranging from South and Central America, up to the southern United States. [1]There have been described 94 extant and two fossil species [2] [3] from the Neotropical Region.