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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 .
Jumping spiders are a group of spiders that constitute the family Salticidae. As of 2019, this family contained over 600 described genera and over 6,000 described species, [1] making it the largest family of spiders at 13% of all species. [2] Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and ...
These spiders, called mirror or sequinned spiders, are all members of several different species of the genus Thwaitesia, which features spiders with reflective silvery patches on their abdomen. The scales look like solid pieces of mirror glued to the spider's back, but they can actually change size depending on how threatened the spider feels.
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 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.
Like other jumping spiders, T. planiceps relies on their very acute eyesight for hunting. The anterior median eyes are the primary eyes used for capture of stationary prey while the anterior lateral eyes are the main eyes used in chasing Both sets of eyes can be coordinated to enable switching from one hunting type to the other. [6]
Most species in the genus Maevia follow the mating behavior of the gray morph of the M inclemens species. [5] This courtship behavior pattern is standard for all jumping spiders which involves three phases [6] In the first phase, males will utilize a mating display to attract a female's attention for the latter to identify if the male is of her species.
It has a carapace that is between 1.28 and 1.46 mm (0.050 and 0.057 in) and between 0.85 and 1.1 mm (0.033 and 0.043 in) wide. [9] [10] It is pear-shaped and light green with two parallel black lines. It has an eye field with four rows of eyes, as is typical for Lyssomaninae spiders, mounted on tubercles and surrounded by black rings. The ...