Bold Jumping Spider, Daring Jumping Spider
Phidippus audax
Salticidae (Jumping Spiders), Order Araneae. Common family traits include large cephalothoraxes and incredible vision.
Physical Description
A robust, hairy spider with a relatively flat cephalothorax and an oval abdomen. They possess large, iridescent chelicerae (mouthparts) and a distinctively 'stocky' appearance.
Size Estimate
Body length 8–15 mm (females are larger). Total leg span roughly 20-30 mm. This appears to be a mature or sub-adult specimen.
Coloration & Markings
Predominantly black or dark grey with a prominent white, orange, or yellow spot/triangle in the center of the abdomen, accompanied by two smaller spots behind it. Chelicerae are often metallic green or blue.
Web Type
Do not build hunting webs. They are 'active hunters' that use silk as a safety line (dragline) or for constructing silken retreats for molting, sleeping, or protecting eggs.
Eye Arrangement
Four pairs of eyes with a massive pair of Anterior Median Eyes (AME) in the center of the face, providing high-resolution telescopic vision.
Leg Characteristics
Relatively short, thick, and powerful legs designed for jumping. The front pair is often held up or out in an inquisitive manner and is used to grab prey.
Venom & Safety Information
Venom Information
Neurotoxic/cytotoxic blend specialized for small invertebrates. Highly effective on prey but extremely low potency in humans.
Medical Significance
Not medically significant. Bites are rare and typically result only in localized redness, itching, or minor swelling similar to a bee sting.
Safety Recommendations
Harmless; do not kill. If found indoors, they can be easily relocated by placing a cup over them and sliding a piece of paper underneath.
Habitat & Behavior
Habitat & Range
Found throughout North America. Prefers vertically structured habitats like walls, fences, gardens, and forest edges where it can easily spot prey.
Behavior & Temperament
Highly intelligent and curious. They track movement with their large eyes and are generally non-aggressive toward humans, preferring to jump away if threatened.
Diet & Prey
Opportunistic hunters of diverse insects, including flies, crickets, and even other spiders. They pounce on prey with high precision from several inches away.
Seasonal Activity
Most active from late spring through early autumn. They may overwinter as sub-adults in silken sacs hidden in crevices.
Description
The Bold Jumping Spider is one of the most charismatic arachnids in North America. Known for its 'fuzzy' appearance and curious nature, it is an active diurnal hunter that relies on sight rather than webs.
Key Features
Large central eyes, iridescent green/blue chelicerae, and a large white/orange spot on the back of a black hairy abdomen.
Similar Species
Phidippus regius (Regal Jumping Spider) which is found in the SE US and usually has more orange coloring in females, and Platycryptus undatus which is flatter and grey-patterned.
Life Cycle
Females lay eggs in silk-lined retreats. Spiderlings emerge and often disperse via 'ballooning.' Lifespan is generally about one year.
Ecological Importance
Critical natural pest control for gardens and houses, consuming significant amounts of flies, gnats, and agricultural pests.
Conservation Status
Common and widespread; not listed on IUCN Red List. Population is stable.
Interesting Facts
Jumping spiders have the best vision of any terrestrial invertebrate and can recognize human faces. They can jump up to 50 times their own body length.
Photography Tips
Focus on the face to capture the large eyes. Use a fast shutter speed as they move quickly and macro lighting to highlight the iridescent mouthparts.
Identified: 2026-05-08T18:55:28.282489