<trp-post-container data-trp-post-id='265330'>Bold Jumping Spider
Open Bird Bucket List ↗
En bref
- Scientific Name: Phidippus audax
- Spanish Name: Araña saltarina audaz
- Family: Salticidae
- Known Nicknames: Bold Jumper, Daring Jumping Spider
- Average Length: 1.3–2.0 cm / 0.5–0.8 in
- Average Weight: 0.03–0.05 g / 0.001–0.002 oz
- Envergure : N/A
- Key Feature: Iridescent metallic green chelicerae (jaws) and three distinct white or orange spots on the abdomen
- Primary Diet: Carnivore (insects and other small arthropods)
- Range: Southern Canada through the United States to Mexico and Central America
- Habitat: Open areas such as grasslands, gardens, fields, and forest edges; often found on fences, walls, and vegetation
- Structure sociale : Solitaire
- Nesting/Breeding: Silken retreat under bark, stones, or in rolled leaves
- Statut de conservation : Préoccupation mineure (LC)
- Évolution démographique : Stable
The **Bold Jumping Spider (*Phidippus audax*)** is a charismatic and intelligent arachnid, renowned for its striking appearance and exceptional vision. Unlike web-spinning spiders, this agile hunter relies on its powerful hind legs to perform incredible leaps—often up to 50 times its body length—to pounce on prey. It is easily identified by its compact, fuzzy black body adorned with distinct white or orange markings on the abdomen and a pair of large, forward-facing eyes that give it an almost inquisitive expression. A special feature is its iridescent, metallic green or blue chelicerae (mouthparts), which flash like jewels in the light. Highly curious and responsive to human movement, the Bold Jumping Spider is a master of precision, using silk as a safety dragline during its acrobatic pursuits, making it a favorite among nature enthusiasts.
Faits amusants
The bold jumping spider has such exceptional vision that it can see the moon, and it uses this eyesight to hunt with a unique stalking-and-pouncing technique, sometimes even tying a silk safety line before leaping up to 50 times its own body length. During courtship, males perform elaborate, vibrating dances with their iridescent green chelicerae (mouthparts) to impress females, who may respond by eating them if the performance fails. They also exhibit a quirky "bowing" behavior, raising and lowering their front legs to signal to rivals or potential mates, and can produce a faint, audible "drumming" sound by rubbing body parts together.
Habitats et répartition
The bold jumping spider is found across most of North America, from southern Canada through the United States and into Mexico. Its geographical range extends from the Atlantic coast to the Rocky Mountains and beyond, with populations also established in Hawaii and parts of the Caribbean. This species thrives in a wide variety of open, sun-exposed habitats, including grasslands, meadows, agricultural fields, and suburban gardens. It is particularly common around human structures, often inhabiting fences, walls, window sills, and the exteriors of buildings, where it seeks sunny spots for hunting and shelter. The spider prefers dry, well-drained areas with abundant low vegetation or vertical surfaces for perching and web retreats.
Comportements & Reproduction
These spiders are solitary and highly territorial, with no social structure beyond aggressive encounters. Males perform an elaborate courtship dance involving rhythmic leg waving, abdominal vibrations, and a specific visual display of their iridescent chelicerae to attract a female. If the female is receptive, she will remain still, allowing the male to approach and deposit sperm using his modified pedipalps. After mating, the female often cannibalizes the male, though this is not guaranteed. She then constructs a silken retreat where she lays a single egg sac containing 30–170 eggs, guarding it aggressively until the spiderlings emerge and disperse through ballooning. This strategy ensures the male’s genetic material is passed on, but the female prioritizes her own survival and offspring care over the male’s life.
Alimentation
The Bold Jumping Spider is a carnivorous predator whose diet consists primarily of a wide variety of insects and other arthropods, including flies, mosquitoes, moths, caterpillars, and crickets. Unlike web-building spiders, it actively hunts by stalking its prey with exceptional vision, then pouncing with a single, venomous bite. An interesting aspect of its diet is that it will also prey on other spiders, sometimes even larger species, and it has been observed cannibalizing smaller jumping spiders. Furthermore, these spiders have been documented feeding on small vertebrates like tree frogs and lizards when the opportunity arises, and they are known to be highly effective at controlling pest insect populations in gardens and agricultural fields.
Couleurs
The Bold Jumping Spider is primarily black with a distinctive pattern of three large, iridescent white or orange spots on its abdomen, often forming a triangular arrangement, and its chelicerae (mouthparts) are a striking, metallic iridescent green or blue. This bold coloration serves as a warning to predators, while its black body provides effective camouflage against bark and shadows.
Distribution Map
Places linked to this species. A sighting is never guaranteed.
