Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes with very large anterior median eyes. All jumping spiders have their eyes arranged in three rows, except for the Lyssomaninae which are found in Florida to S American, which have four rows (one for each pair).

Jumping spiders have very good vision centered in their anterior median eyes . Their eyes are able to create a focused image on the retina, which has up to four layers of receptor

cells in it

 

Behavior

Jumping spiders are generally active hunters. Their well-developed internal system extends their limbs by altering the pressure of body fluid within them. This enables the spiders to jump without having large muscular legs like a grasshopper. Most jumping spiders can jump several times the length of their body. When a jumping spider is moving from place to place, and especially just before it jumps, it tethers a filament of silk or dragline to whatever it is standing on. Should it fall for one reason or another, it climbs back up the silk tether.

 

Hunting

Jumping spiders are active hunters, which means that they do not rely on a web to catch their prey. Instead, these spiders stalk their prey. They use their superior eyesight to distinguish and track their intended meals, often for several inches. Then, they pounce, giving the insect little to no time to react before succumbing to the spider's venom.

Diet

Although spiders are generally carnivorous, there are some jumping spiders which include nectars and pollen in their diet. None are known to feed on seeds or fruit. Plants

such as the partridge pea offer the jumping spiders nectar through

extrafloral nectaries, and in return the spiders help to protect the plant

by killing and eating pests.