JUMPING SPIDERS OF SABAH

The Cephalothorax
Cephalothorax or prosoma = A fused head and thorax.

MALE
♂6.5mm


Male. Cephalothorax long and flat, brown with intensely white brown margin and intense white line beneath eyes I.
There is also a beard of longer but sparse white setae under eyes I median, overhanging bases of dark brown chelicerae and growing on them.
 

FEMALE
♀8.5mm


Female. Cephalothorax flat and long, dark brown, with intense white setae on the margin, white spot beneath eyes I lateral and dorsally between eyes I median.


 

The Abdomen


Abdomen greyish fawn with paler spots, making an indistinct pattern of darker median streak along anterior half of abdomen, and a few short and indistinct chevrons medially in the posterior three fourth.
A pair of white spots in two third brown of abdomen.
Sides of abdomen white.

Abdomen broad, flattened, marginally whitish, with intense brownish rusty rim around dorsal surface making frame to a pattern of faint brownish spots (anterior half median line crossed, four chevrons centrally and posteriorly) on whitish background.

Pedipalps


Pedipalps generally fawn with distal end of femur whitish.
Large round bulbus and long cymbium.


pedipalps fawnish with long but sparse white setae
 
MALE
 

FEMALE
Legs brown with some parts lighter fawn.
Whole area beneath eyes I covered with short white setae except shallow fawnish arches on rim above chelicerae, just beneath eyes lateral.
Chelicerae blackish brown, , anterior legs brown.
Ventrally cephalothorax and appendages generally fawnish to brownish, abdomen yellowish grey.
Epigyne was covered with waxy secretion which fell out during maceration (figs.153-159).
It is an oval shallowly depressed plate, with a low ridge medially, copulatory openings located posteriorly, lead to thick walled sclerotized chamber, from which short canals with prominent accesory gland opening lead to small spermathecae.
These internal organs in proportions to the whole epigyne are very small (figs.154-155,158-159)
 


Family: Salticidae
Subfamily: Heliophaninae
Genus: Menemerus
Species : Menemerus fulvus ♀

|  MALE  |  FEMALE  |

Dorsal View and Ventral View of male and female Menemerus fulvus spiders.

Menemerus fulvus
Menemerus fulvus
3-11-2014 EDA

 

Juvenile

 

♀8.5mm Matured Female

♀7.5mm Juvenile Female

♂6.5mm Matured Male

EDA 25-11-2014 TUE 9:41AM

The body length of this male is 6.5mm

Menemerus fulvus is often confused with 3 other wall jumper species because their body shape structure and grey colour patent. Male and female among these 4 species are inter-misidentified as each other's.

Here are the 4 species of grey wall jumpers :
Subfamily Heliophaninae
Menemerus bivittatus		 Subfamily Heliophaninae
Menemerus fulvus		 Subfamily Plexippinae
Plexippus paykulli		 Subfamily Plexippinae
Plexippus petersi