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Gray Wall Jumping (Menemerus bivittatus)

Gray wall jumper of the Salticidae family has a Pantropical distribution, indigenous to the tropical regions of the northern and southern hemispheres. These spiders get their name as they commonly dwell on the outer walls of buildings.

Gray Jumping Spider

Physical Description and Identification

Adults

Size:  The females are 0.27 – 0.39 inches (7 – 10 mm) long, while males are smaller with a body length of0.19 -0.27 inches).

Color: Both genders have a brown body covered with grayish-white hairs, though they differ from the other in pattern. The dorsal stripe on the males is black, while the stripes on both sides of their abdomen are brownish-white. They even have black and white bands on their legs, chelicerae, and carapace. On the other hand, the females have a browner body, alongside two black bands and white stripes on the carapace, as well as thick black abdominal bands.

Other Characteristic Features: They have a flattened body, while the females possess a larger abdomen and carapace.

Eggs

The female lays 25 to 40 of them in a silken case resembling a purse.

Spiderlings

They hatch within three weeks after being laid. The juvenile spiders replicate females.

The Web

Like most other jumping spider species, the Gray Wall Jumper does not build webs to catch prey. Instead, they directly jump on their prey to attack them.

Is the Gray Wall Jumper Venomous

They will bite when provoked, though their venom does not cause harm to humans.

Gray Wall Jumping Spider

Quick Facts

Other NamesGray Wall Jumper
DistributionHas a cosmopolitan distribution, occurring in tropical regions; in America, it occurs in parts of California, Texas, and Florida as well as Paraguay alongside parts of Caribbean Islands
HabitatOn tree trunks, and walls of buildings
DietSmall insects
LifespanAbout 1 year

Did You Know

  • These spiders have an immense jumping ability, moving from one place to the other with ease, even getting hold of crane flies twice their size.
  • In The Gambia, these species have been noticed tracing the whereabouts of stinging bees. However, they barely succeed in catching them.

Image Source: 3.bp.blogspot.com

Gray wall jumper of the Salticidae family has a Pantropical distribution, indigenous to the tropical regions of the northern and southern hemispheres. These spiders get their name as they commonly dwell on the outer walls of buildings.

Gray Jumping Spider

Physical Description and Identification

Adults

Size:  The females are 0.27 – 0.39 inches (7 – 10 mm) long, while males are smaller with a body length of0.19 -0.27 inches).

Color: Both genders have a brown body covered with grayish-white hairs, though they differ from the other in pattern. The dorsal stripe on the males is black, while the stripes on both sides of their abdomen are brownish-white. They even have black and white bands on their legs, chelicerae, and carapace. On the other hand, the females have a browner body, alongside two black bands and white stripes on the carapace, as well as thick black abdominal bands.

Other Characteristic Features: They have a flattened body, while the females possess a larger abdomen and carapace.

Eggs

The female lays 25 to 40 of them in a silken case resembling a purse.

Spiderlings

They hatch within three weeks after being laid. The juvenile spiders replicate females.

The Web

Like most other jumping spider species, the Gray Wall Jumper does not build webs to catch prey. Instead, they directly jump on their prey to attack them.

Is the Gray Wall Jumper Venomous

They will bite when provoked, though their venom does not cause harm to humans.

Gray Wall Jumping Spider

Quick Facts

Other NamesGray Wall Jumper
DistributionHas a cosmopolitan distribution, occurring in tropical regions; in America, it occurs in parts of California, Texas, and Florida as well as Paraguay alongside parts of Caribbean Islands
HabitatOn tree trunks, and walls of buildings
DietSmall insects
LifespanAbout 1 year

Did You Know

  • These spiders have an immense jumping ability, moving from one place to the other with ease, even getting hold of crane flies twice their size.
  • In The Gambia, these species have been noticed tracing the whereabouts of stinging bees. However, they barely succeed in catching them.

Image Source: 3.bp.blogspot.com

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