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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]
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]
Spiders have been used in studies which indicate that invertebrates may experience pain. Under natural conditions, orb-weaving spiders (Argiope spp.) undergo autotomy (self-amputation) if they are stung in a leg by wasps or bees. Under experimental conditions, when spiders were injected in the leg with bee or wasp venom, they shed this appendage.
Phidippus johnsoni, the red-backed jumping spider or Johnson jumping spider, is one of the largest and most commonly encountered jumping spiders of western North America. It is not to be confused with the unrelated and highly venomous redback spider ( Latrodectus hasselti ).
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 ]
Portia schultzi is a species of jumping spider which ranges from South Africa in the south to Kenya in the north, and also is found in West Africa and Madagascar.In this species, which is slightly smaller than some other species of the genus Portia, the bodies of females are 5 to 7 mm (0.20 to 0.28 in) long, while those of males are 4 to 6 mm (0.16 to 0.24 in) long.
In the breeding season, one mated female can lay well over 100 eggs per sac; many females lay more than one egg sac, and it is easy to recognize the egg sacs. Juvenile and adult jumping spiders can be collected via sweep netting or by providing good sites for nests, even in plumber 's tubing placed in old fields.
Zygoballus sexpunctatus is a species of jumping spider which occurs in the southeastern United States where it can be found in a variety of grassy habitats. Adult spiders measure between 3 and 4.5 mm in length. The cephalothorax and abdomen are bronze to black in color, with reddish brown or yellowish legs.