bold jumper

(Phidippus audax)

Conservation Status
IUCN Red List

not listed

NatureServe

NNR - Unranked

Minnesota

not listed

 
bold jumper
Photo by Alfredo Colon
 
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

 

Web

No web

 

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, 82, 83.

5/2/2024    
     

Occurrence

Extremely common and widespread

Taxonomy

Class

Arachnida (arachnids)

Order

Araneae (spiders)

Suborder

Araneomorphae (typical spiders)

Infraorder

Entelegynae

Superfamily

Salticoidea

Family

Salticidae (jumping spiders)

Subfamily

Salticinae (typical jumping spiders)

Tribe

Dendryphantini

Subtribe

Dendryphantina

Genus

Phidippus

no rank

Phidippus audax complex

   

Subordinate Taxa

 

   

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
 

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Alfredo Colon

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

Kim Khamthanie

bold jumper  

bold jumper

Found in my mailbox!  

 

Brian Montgomery

bold jumper   bold jumper

Need help identify them

I think the … images are of a jumping spider - the wife found him on the kitchen counter. She was NOT amused.

Babette Kis

bold jumper   bold jumper

Phidippus audax bold jumper

Mike Poeppe

bold jumper    

Joy G

bold jumper    

Many seen in patio area, on driveway and car and a few coming in through bedroom window. Have been bitten overnight in bedroom twice.

   

Susan R

bold jumper

In my car!

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

bold jumper    

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

   

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
 

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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.

 

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Be sure to include a location.

Kim Khamthanie
5/31/2023

Location: Coon Rapids, Minnesota

Found in my mailbox!

bold jumper
Alfredo Colon
8/29/2022

Location: Albany, NY

bold jumper
Alfredo Colon
8/16/2022

Location: Albany, NY

bold jumper
Alfredo Colon
8/4/2022

Location: Albany, NY

bold jumper
Brian Montgomery
6/22/2022

Location: Prior Lake, Scott County

Need help identify them

I think the … images are of a jumping spider - the wife found him on the kitchen counter. She was NOT amused.

bold jumper
Mike Poeppe
6/22/2022

Location: just west of Houston, MN

bold jumper
Joy G
6/6/2022

Location: Eagan, MN

Many seen in patio area, on driveway and car and a few coming in through bedroom window. Have been bitten overnight in bedroom twice.

bold jumper
Susan R
6/3/2022

Location: Lakeville, MN

In my car!

bold jumper
Babette Kis
9/17/2021

Location: Barnes Prairie, Racine Co., WI

bold jumper
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! 

Babette Kis
10/6/2020

Location: Barnes Prairie, Racine Co., WI

bold jumper
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

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Created: 11/11/2015

Last Updated:

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