bold jumper

(Phidippus audax)

Conservation Status
bold jumper
Photo by Alfredo Colon
  IUCN Red List

not listed

     
  NatureServe

NNR - Unranked

     
  Minnesota

not listed

     
           
           
           
 
Description
 
 

Bold jumper is an extremely common jumping spider in eastern United States. It is a medium-sized spider but a very large jumping spider. It is highly variable in appearance.

The female body is to ¾ long, not including the legs. The male is smaller than the female, to long. The front part of the body (cephalothorax) and abdomen are black with white spots and are covered with short white hairs giving them a fuzzy appearance. The male is more contrastingly marked than the female.

The cephalothorax is massive, high, and longer than wide. Its sides are rounded.

The abdomen is widest in the middle and tapered to the end (posterior). It has 4 pairs of white spots and 4 pairs of squarish matte black spots. The first (anterior) pair of white spots is sometimes absent or inconspicuous. The second pair is usually, but not always, fused into a large central spot. The third pair are elongated, appearing as short stripes. The fourth (posterior) pair are much smaller and sometimes inconspicuous. The black spots are covered with short black hairs, the white spots with white hairs. On juveniles the light spots are often orangish-red.

There are four pairs of eyes arranged in three rows. The first row of of four eyes is recurved. The middle pair of these is by far the largest of all of the eyes. The second row of two eyes is closer to the first row than it is to the third. The second and third rows form a square. The jaws (chelicerae) are small. The basal parts of the chelicerae are iridescent green or blue.

The legs are short. On the male they are boldly striped white and black. On the female they are faintly striped.

 
     
 

Size

 
 

Female Body Length: to ¾

Male Body Length: to

 
     
 

Similar Species

 
  Regal jumper (Phidippus regius) lacks matte black spots on the abdomen. It occurs in southeastern United States, not in Minnesota.  
     
 
Habitat
 
 

Old fields, prairies, open woodlands, backyards, gardens, and human houses

 
     
 
Biology
 
 

Season

 
 

Spring to fall

 
     
 

Behavior

 
 

Bold jumper hunts during the day by sneaking up and pouncing on its prey. It releases silk while jumping as a drag line to prevent falling. It does not hunt at night.

It will bite if molested but is usually too quick and wary to be caught. It can jump 10 to 50 times its body length.

 
     
 

Life Cycle

 
 

Mating takes place in late spring or early summer. When courting, a male will wave its forelegs and palps, showing off his colorful chelicerae. After mating the female produces up to 6 sacs of 30 to 170 eggs each during the summer. She lays these egg sacs under the bark of logs, creates a silk shelter to protect the hatchlings, and stands guard until the hatchlings disperse. Juveniles overwinter in a silk cocoon under bark or some other protected space. Adults mature in the spring.

 
     
 

Food

 
 

Insects, spiders, and possibly other small invertebrates and vertebrates

 
     
 
Distribution
 
 

Distribution Map

 

Sources

24, 29, 30.
 
  6/8/2021      
         
 

Occurrence

 
 

Extremely common and widespread

 
         
 
Taxonomy
 
  Class Arachnida (arachnids)  
 

Order

Araneae (spiders)  
 

Suborder

Araneomorphae (true spiders)  
  Infraorder Entelegynae (eight-eyed spiders)  
 

Superfamily

Salticoidea  
 

Family

Salticidae (jumping spiders)  
 

Subfamily

Salticinae  
 

Tribe

Dendryphantini  
  Subtribe Dendryphantina  
 

Genus

Phidippus  
       
 

Synonyms

 
 

 

 
       
 

Common Names

 
 

bold jumper

bold jumping spider

daring jumping spider

white-spotted jumping spider

 
       

 

 

 

 

 

Glossary

Cephalothorax

The front part of a spider’s body, composed of the head region and the thoracic area fused together. Eyes, legs, and antennae are attached to this part.

 

Chelicerae

The pair of stout mouthparts, corresponding to jaws, in arachnids and other arthropods in the subphylum Chelicerata.

 

Palp

Short for pedipalp. A segmented, finger-like process of an arthropod; one is attached to each maxilla and two are attached to the labium. They function as sense organs in spiders and weapons in scorpions.

 

 

 
 
Visitor Photos
 
           
 

Share your photo of this arachnid.

 
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Alfredo Colon

 
    bold jumper   bold jumper  
           
    bold jumper   bold jumper  
           
    bold jumper   bold jumper  
           
    bold jumper   bold jumper  
 

Terry Hayes

 
 

… here's a beautiful jumping spider I saw last summer in my yard in Montrose MN.

 
    bold jumper   bold jumper  
           
    bold jumper      
 

Kathy

 
 

it was just sitting next to my storage space by the lock

 
    bold jumper      
 

Mackenzie Rhymes

 
 

I was sitting on my front steps and in my peripheral vision I see something moving slowly. I look over and see a Phidippus Audax crawling towards me. I yelled out to my sister to come take a look and startled it which caused him to step back and halt for a minute. I got up to take a picture and let him crawl around on the landing of the top of our steps. He then burrowed himself in a dark area in the corner of the landing. First time I’ve come across a Phidippus Audax in Minnesota.

  bold jumper  
           
 
MinnesotaSeasons.com Photos
 
 

 

 
           
           

 

Camera

     
 
Slideshows
 
Phidippus audax (Bold Jumper)
Allen Chartier
  Phidippus audax (Bold Jumper)  
     

 

slideshow

       
 
Visitor Videos
 
       
 

Share your video of this arachnid.

 
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Attach a video, a YouTube link, or a cloud storage link.
 
 

 

 
     
     
       
       
 
Other Videos
 
  Phidippus audax jumping spider 4K
lucasberg
 
   
 
About

Published on May 28, 2014

phidippus audax jumping spider shot in 4K on a Sony FDR-A100.

Music is from the youtube creators library.

   
  Macro Video of an Adult Female Phidippus Audax Jumping Spider
Thomas Shahan
 
   
 
About

Uploaded on Nov 15, 2009

Found on a fence at a friend's ranch last June.

This is about as large as jumping spiders get (~15mm or so body length) but adult females vary in size and some Phidippus species can easily exceed 20mm body length.

Music is a cover of The Ronettes' 1963 hit, "Be My Baby" written by Phil Spector.

For more spider photography and videos, head on over to www.ThomasShahan.com

   
  Adult Male Phidippus audax Jumping Spider
Thomas Shahan
 
   
 
About

Uploaded on May 30, 2009

A pretty good sized adult male found in a dumpster.

   
  Macro Video of an Adult Female Phidippus audax Jumping Spider
Thomas Shahan
 
   
 
About

Uploaded on Jan 18, 2009

A macro video of a very large (15mm or so) adult female Phidippus audax jumping spider I found in a light fixture. Set to a recording I did back in December with a vintage Japanese Alvarez classical acoustic and a Kay Swingmaster hollowbody electric.

For my jumping spider and insect photos, go here:
http://www.flickr.com/photos/7539598@N04/

   
  Jumping Spiders Mating-Phidippus Audax
Torn80cj
 
   
 
About

Published on May 18, 2012

Two phidippus audax jumping spiders mate. The spider at the very end with the red spots is a very young phidippus audax, pretty much still a baby.

   
       

 

Camcorder

 
 
Visitor Sightings
 
           
 

Report a sighting of this arachnid.

 
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Simply email us at info@MinnesotaSeasons.com.
Be sure to include a location.
 
  Brian C
6/4/2021

Location: Lakeville, MN

Male with bright green chelicerae stroking them as a clear mating display.  I saw this Romeo two evenings in a row in my backyard.  I hope to see him again! 

 
  Kathy
6/20/2020

Location: Monroe County, New York

it was just sitting next to my storage space by the lock

bold jumper

 
  Mackenzie Rhymes
9/18/2019

Location: South Minneapolis, Minnesota

I was sitting on my front steps and in my peripheral vision I see something moving slowly. I look over and see a Phidippus Audax crawling towards me. I yelled out to my sister to come take a look and startled it which caused him to step back and halt for a minute. I got up to take a picture and let him crawl around on the landing of the top of our steps. He then burrowed himself in a dark area in the corner of the landing. First time I’ve come across a Phidippus Audax in Minnesota.

bold jumper

 
  Alfredo Colon
8/8/2019

Location: Woodbury, Minnesota

bold jumper

 
  Alfredo Colon
8/29/2018

Location: Woodbury, Minnesota

bold jumper

 
  Terry Hayes
8/31/2015

Location: Montrose MN

… here's a beautiful jumping spider I saw last summer in my yard in Montrose MN.

I think it's a male due its smaller size (about 1/4") and the slight clubs on the palps.  The bright sun highlighted the gold on him.

bold jumper

 
           
 
MinnesotaSeasons.com Sightings
 
 

 

 

 

 

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Created: 11/11/2015

Last Updated:

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