Gray Wall Jumping Spider

Fascinating facts about the Gray Wall Jumping Spider

• The gray wall jumper can seize prey far larger than itself, taking down crane flies that are at least twice its body length. It hunts on walls where small flies regularly alight, relying on its keen eyesight to locate them. Rather than spinning a capture web it stalks the insects and then launches a powerful leap to seize them. This hunting style lets it capture prey up to twice its size.
• Male gray wall jumpers produce a faint rasping sound during courtship, generated by a specialised stridulatory organ. The organ consists of several long bristles on the palpal femur that are rubbed against horizontal ridges on the outer side of the chelicerae. This rubbing creates the audible rasp as the spider moves its palpal teeth across the ridges. The sound is thought to form part of the male's courtship display.
• A female gray wall jumper builds a hidden silk purse in a crack or other concealed spot on a wall, depositing between 25 and 40 eggs inside. The purse-like silken case protects the developing embryos while the mother remains nearby. She guards the eggs until they hatch after about three weeks, after which the young spiders disperse to begin their own lives. This guarded incubation ensures a higher chance of survival for the offspring.
• After laying, the mother stays with the sac, guarding it for roughly three weeks until the eggs hatch, then the young disperse. She builds the eggsac in a crack or other concealed spot on a wall, fashioning a purse-like silken case that holds 25 to 40 eggs. This careful guarding continues until the embryos develop, after which the spiderlings leave the safety of the sac to begin their own lives.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Gray Wall Jumping Spider

In the scorching desert landscapes, a diminutive yet dazzling figure darts with breathtaking agility, the Gray Wall Jumping Spider weaving an intricate dance of survival. With eyes like polished onyx, this diminutive hunter navigates the arid expanse, its impressive leg span allowing it to leap with remarkable precision, covering vast distances in pursuit of unsuspecting prey. As it springs across the sun-baked terrain, its gray and white form blurs, a fleeting glimpse of a masterful predator that has honed its craft in this unforgiving environment.

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