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Gray wall jumper

Gray wall jumper

Menemerus bivittatus

A species of Wall jumping spiders, Also known as Grey wall jumping spider

The female gray wall jumper lays her eggs in cracks or other hidden areas. The young and mature spiders feed on flies, making them useful residents in a household. They do not make webs, but carefully hunt and jump on their prey.

Toxic to Animals
Toxic to Animals
Bite Humans
Bite Humans
General Info About Gray wall jumper
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Attributes of Gray wall jumper
Colors
Brown
Black
White
Habitat
man-made structure; tree trunk; near bee nest
Adult Food Sources
Insects, ants, flies, mosquitoes, small caterpillars, and sometimes other spiders
Larva Food Source
Small insects, such as fruit flies, freshly hatched crickets, or tiny caterpillars
Biting/stinging
The Gray wall jumper may bite humans actively. Please stay away from it.
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
The Gray wall jumper can induce toxic reactions varying in severity. Nevertheless, these toxins primarily target their prey and predators and are usually not fatal to humans.
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
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Appearance of Gray wall jumper
Gray wall jumpers are dorso-ventrally flattened and are covered with short dense, grayish-white hairs. There are tufts of dark brown bristles near the large, forward-facing eyes. The spiders are about 9 mm long, the male being slightly smaller than the female. The male has a blackish longitudinal dorsal stripe with a brownish-white stripe on either side of the abdomen. The carapace and chelicerae are also black and white and the legs have transverse bandings of the same colours. The female is generally paler and more brown, with a larger carapace and abdomen. Her carapace is edged with two black bands and a thin white stripe and her abdomen is edged with broad black stripes on each side which unite at the posterior end. Her legs are banded but are paler than those of the male. Immature spiders resemble the female.
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How to Identify Gray wall jumper?

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Adult Size of Gray wall jumper
3 - 10 mm
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Predators of Gray wall jumper Larvae
Insectivorous birds, larger spiders, lizards, frogs
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Predators of Adult Gray wall jumper
Birds, reptiles, larger spiders, mammals
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Interesting Facts About Gray wall jumper
Gray wall jumper can perform spectacular jumps up to 50 times its own body length, thanks to specialized leg muscles and a unique blood pressure system.
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Scientific Classification of Gray wall jumper
Tips for Finding Gray wall jumper
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Youth Habitat of Gray wall jumper
Urban and Suburban Areas
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When is the Best Time to Observe Gray wall jumper
The most suitable time to find gray wall jumper would be during daylight hours when they are most active, typically on sunny days when they are out hunting for food.
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What is the Best Weather to Observe Gray wall jumper
Warm, dry conditions are most suitable for sighting gray wall jumper, as they prefer sunny weather for their hunting activities. They may be less active or in hiding during wet or cold conditions.
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How and Where Can You Find Gray wall jumper at Different Life Stages
Juvenile Gray wall jumper juveniles are small and may be found in similar habitats to adults but are less conspicuous. Look for them on sunny days on vertical surfaces like walls, fences, or plant stems where they might be hunting.
Adult Gray wall jumper adults can be found on various surfaces where they hunt for insects. Search on sunny days on tree trunks, walls, and even inside homes or sheds. They are recognizable by their distinctive jumping movements and may also be spotted by their courtship dances.
Are Gray wall jumper harmful?
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Harmful Effects of Gray wall jumper
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Toxic to Animals
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Bite Humans
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Toxic to Animals

Gray wall jumper typically targets other smaller creatures such as beetles, caterpillars, and spiders. As an adult, it utilizes a sting to deliver a mild toxin while hunting its prey. While the toxin's intensity is generally mild, it is potent enough to subdue its intended victims, primarily affecting other small critters. The specific reaction to the toxin may vary among different species but is aimed at immobilizing the prey for consumption or reproductive purposes.

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Bite Humans

Gray wall jumper is not typically known to bite humans. If bites occur, it is usually in self-defense when the spider feels threatened. The bite may cause mild discomfort, but gray wall jumper does not employ specialized methods for biting humans, and the consequences are generally not severe or medically significant.

More Effects of Gray wall jumper

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