common Hentz jumping spider

(Hentzia palmarum)

               
Conservation Status

IUCN Red List

not listed

common Hentz jumping spider

 

NatureServe

NNR - Unranked

SNR - Unranked

Minnesota

not listed

Occurrence

 

Season

 

Habitat/Host

 

Size

Female Body Length: to ¼ (4.7 to 6.1 mm)

Male Body Length: to 3 16 (4.0 to 5.3 mm)

Legspan: ¼ (6 to 7 mm)

Photo by Alfredo Colon
 
Identification

Common Hentz jumping spider is a small jumping spider. It occurs in North America east of the Rocky Mountains and in Mexico. In the United States it is most common in the southeast and west to Texas. It is uncommon in Minnesota, where it is at the northern extent of its range. It is commonly found on shrubs and small trees.

The female is to ¼ (4.7 to 6.1 mm) long and has a legspan of ¼ (6 to 7 mm). The male is smaller, to 3 16 (4.0 to 5.3 mm) long. The body is slightly elongated.

On the female, the front part of the body (cephalothorax) is longer than wide. The plate covering the cephalothorax (carapace) is reddish-brown, dark on the sides and rear, lighter in the middle. It is irregularly covered with white scales giving it a mottled appearance. There are four pairs of eyes arranged in what appears to be three rows occupying less than half of the carapace. The first row of four eyes, consisting of the anterior median eyes (AMEs) and anterior lateral eyes (ALEs), is curved backward. The AMEs are the middle and forward-most pair of these. They are by far the largest of all of the eyes and can be moved. The AMEs are about twice as large as the ALEs. The second row of two eyes are the posterior median eyes (PMEs). They are very small and are barely or not at all noticeable on most photos. Below each PME there is there is a pair of close tufts of long black hairs (hair pencils). The third row of eyes is the posterior lateral eyes (PLEs). The PLEs are set far back on the head and are only slightly wider apart than the first row of four eyes (AMEs and ALEs together). The PMEs and ALEs form a wide rectangle. The narrow plate above the mouth (clypeus) is covered with white hairs. The prominent mouthparts (chelicerae) corresponding to jaws are reddish-brown. There are two sensory appendages (palps) associated with the mouthparts. The palps are yellow with three dark spots on top (dorsally).

The abdomen is yellowish, is covered with white hairs, and has three or four dark markings appearing either as forward-pointing triangles or a herringbone pattern.

The legs are translucent. The first pair of legs are the longest and are mostly light orangish-brown. The underside of the third leg segment (femur) near the tip, and the tips of the fourth segment (patella) and fifth segment (tibia) are dark. The femur and patella have spatula-shaped hairs on the lower margin. The remaining legs are yellow.

On the male the carapace is orangish-brown with a dark area in the middle, becoming wider toward the rear; an orange band on the front and sides around the eyes; and below that a broad white band. The clypeus is covered with white hairs. The chelicerae are moderately elongated and dark reddish brown with a fringe of white hairs above. The abdomen is medium or dark orangish-brown with a broad white band on each side. The front legs are mostly dark reddish-brown. The base of the sixth segment (metatarsus) and the entire seventh segment (tarsus) are yellow. The remaining legs are translucent and yellow.

 
Similar
Species

White-jawed jumping spider (Hentzia mitrata) has whitish, unpigmented legs.

 
Food

 

 
Life Cycle

 

 
Behavior

 

 
Distribution Distribution Map   Sources: 24, 29, 30.
 
Comments

 

 
Taxonomy

Order:

Araneae (spiders)

 

Suborder:

Araneomorphae

 

No Rank:

Entelegynae (eight-eyed spiders)

 

No Rank:

RTA clade

 

No Rank:

Dionycha

 

Family:

Salticidae (jumping spiders)

 

no rank:

Salticoida

 

no rank:

Marpissoida

 

Subfamily:

Dendryphantinae

 
Synonyms

 

 
Common
Names

common Hentz jumper

common Hentz jumping spider

dark-legged long-jawed jumping spider

Hentz jumping spider

Hentz longjawed jumper

 

 

 

 

 

Glossary

Carapace

The hard, upper (dorsal), shell-like covering (exoskeleton) of the body or at least the thorax of many arthropods and of turtles and tortoises. In crustaceans, it covers the cephalothorax.

 

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.

 

Clypeus

On insects, a hardened plate on the face above the upper lip (labrum).

 

Femur

On insects and arachnids, the third, largest, most robust segment of the leg, coming immediately before the tibia. On humans, the thigh bone.

 

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.

 

Patella

The fourth segment of a spider leg, after the femur and before the tibia.

 

Tibia

The fourth segment of an insect leg, after the femur and before the tarsus (foot). The fifth segment of a spider leg or palp.

 

 

       
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Alfredo Colon
       
  common Hentz jumping spider    
       
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Camera

     
Slideshows
   
  jumping spider (Hentzia palmarum) (O)
Bill Keim
 
  jumping spider (Hentzia palmarum) (O)  

 

slideshow

       
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Other Videos
 
  Macro Video of a Male Hentzia palmarum Jumping Spider
Thomas Shahan
 
   
 
About

Published on Nov 8, 2009

Check out the size of the chelicerae and fangs on this specimen!

The music is a cover of Bob Dylan's "I Dreamed I Saw St. Augustine" performed by myself.

   
       
  Hentzia palmarum - Big Fanged Male Jumping Spider
Thomas Shahan
 
  >  
 
About

Published on Aug 6, 2019

Rescued this big guy from the hood of the car this morning. Super active out in the open, but after curling a leaf for him to escape into - he eventually calmed down and started grooming. Gently peeling the leaf back a bit I could shoot the messy focus-stacked portrait at the end.

   
       
  Hentzia palmarum - Jumping Spider
Dick Walton
 
   
 
About

Published on Nov 25, 2010

males and gravid female Hentzia palmarum jumping spider; showing adult males fancy chelicerae (jaws) and gravid female

   
       

 

Camcorder

         
Visitor Sightings
   
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Alfredo Colon
8/28/2018

Location: Woodbury, Minnesota

common Hentz jumping spider


     
     
 
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