Bold Jumping Spider, Daring Jumping Spider, Bold Jumper
Phidippus audax
Salticidae (Jumping Spiders), Order Araneae
Physical Description
A robust, hairy spider with a heavy build. The cephalothorax is large and high, while the abdomen is ovoid. They are known for their iridescent chelicerae (mouthparts), which are often a metallic green or blue.
Size Estimate
Adult females range from 8-15mm in body length; males are slightly smaller at 6-13mm. This specimen appears to be an adult female based on the large abdomen.
Coloration & Markings
Predominantly black with a white or orange triangular spot in the center of the abdomen, flanked by two smaller spots towards the rear. The spots are white in adults but often orange or red in juveniles.
Web Type
This spider does not build webs for hunting. Instead, it constructs a silken 'pup-tent' or retreat for molting, laying eggs, and sleeping.
Eye Arrangement
Four pairs of eyes: two very large Anterior Median Eyes (AME) for high-resolution binocular vision, framed by smaller eyes that provide a nearly 360-degree field of view.
Leg Characteristics
The front pair of legs is significantly thicker and more muscular, used for grappling prey. All legs are covered in dense hairs and lacks spines typical of web-weavers.
Venom & Safety Information
Venom Information
Possesses a mild neurotoxic venom designed to paralyze small insects. It is not considered medically significant to humans.
Medical Significance
Harmless to humans. Bites are rare and usually occur only if the spider is squeezed. Symptoms are similar to a bee sting, involving localized redness and minor swelling.
Safety Recommendations
No action is needed. If found indoors, they can be easily relocated using a cup and a piece of paper. They are not aggressive.
Habitat & Behavior
Habitat & Range
Widely distributed across North America. Commonly found in gardens, on exterior walls, fences, and inside homes near windows.
Behavior & Temperament
Highly active diurnal hunters. Known for 'curiosity,' they will often turn to look at humans. They use hydraulic pressure to jump many times their body length to pounce on prey.
Diet & Prey
Generalist predators eating flies, crickets, moths, and other spiders. They track prey visually and leap to capture it rather than using a web.
Seasonal Activity
Most active from late spring through fall. They overwinter as sub-adults in silk sacks hidden under bark or siding.
Description
The Bold Jumper is the charismatic 'puppy' of the spider world. With their large, expressive eyes and curious behavior, they are a favorite among nature enthusiasts and excellent for garden pest control.
Key Features
Black hairy body, metallic green chelicerae, and three white spots on the dorsal abdomen (the center one being the largest).
Similar Species
Phidippus regius (Regal Jumping Spider) which is found in the SE United States and has more varied coloration, or Phidippus workmani.
Life Cycle
Females lay several egg sacs in summer within a silk retreat. Spiderlings emerge and disperse by ballooning (using silk to fly on wind currents). They live approximately one year.
Ecological Importance
Critical predators of garden pests such as leafhoppers and flies. They serve as a food source for birds and wasps.
Conservation Status
Not listed (Stable/Common).
Interesting Facts
They have vision that is arguably the best of any invertebrate, comparable to a cat's vision in terms of acuity and color perception.
Photography Tips
Focus on the front of the spider to capture the large eyes and metallic chelicerae. Eye-level shots create an engaging, 'portrait' feel.
Identified: 2026-07-19T20:22:55.930235