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Mouse spider

Mouse spider

Scotophaeus blackwalli

A species of Scotophaeus

The mouse spider (Scotophaeus blackwalli) received because it skitters about the room when looking for food, similar to a mouse. Given that it has a soft, velvet appearance, it is easy to confuse with a mouse. Females protect their young by hiding the eggs within a disc of silk in a dark corner of a structure.

Toxic to Animals
Toxic to Animals
Bite Humans
Bite Humans
General Info About Mouse spider
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Attributes of Mouse spider
Colors
Brown
Black
Habitat
around and in house; under bark; hole
Adult Food Sources
Flies, beetles, moths, other spiders, crickets
Larva Food Source
Small insects, mites, aphids, insect larvae, juveniles of other arthropods
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
The Mouse spider 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
Biting animal or pet
Yes
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Species Status of Mouse spider
It is widespread in Britain and northern Europe.
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Distribution Area of Mouse spider
Britain, Northern Europe
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Appearance of Mouse spider
The adult males of these spiders reach 9 mm in length, maturing in the early summer, while females reach 1.2 cm, and can be found until autumn. The carapace is dark brown while the abdomen is brown/grey with hairs resembling the body of a mouse, hence the common name of 'mouse spider'. The legs are brown with thick pubescence. The male has a small scutum on the dorsum of the abdomen.
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How to Identify Mouse spider?

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Adult Size of Mouse spider
9 - 12 mm
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Predators of Mouse spider Larvae
Birds, rodents, larger spiders, ant colonies, centipedes
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Scientific Classification of Mouse spider
Tips for Finding Mouse spider
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Youth Habitat of Mouse spider
Forests and Woodlands, Urban and Suburban Areas
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Adult Habitat of Mouse spider
Forests and Woodlands, Urban and Suburban Areas
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How Can You Attract Mouse spider
Considering mouse spider is a ground-dwelling spider, it does not typically construct webs to catch prey. Therefore, setting up traps with food may not be effective. However, since mouse spider primarily eats small insects, using insects as bait in live capture traps could potentially attract these spiders.
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When is the Best Time to Observe Mouse spider
Nighttime is the most suitable time to find mouse spider, as it is nocturnal and more active during the dark, making it easier to spot while they hunt or move around.
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What is the Best Weather to Observe Mouse spider
Mild and damp weather conditions are optimal as mouse spider require moisture and do not thrive in overly hot or dry conditions. They may be forced out of hiding in search of humid microhabitats.
Are Mouse spider harmful?
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The mouse spider can cause toxic reactions with a wide range of severity. However, the toxins are typically targeted at their prey and predators. They are usually not fatal to humans.

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Are Mouse spider harmful to humans?

Ground spiders usually do not bite, and may only bite when feeling coerced. They are very toxic, harmless to humans and other animals, and are generally not considered dangerous.
Harmful Effects of Mouse spider
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Toxic to Animals
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Bite Humans
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Toxic to Animals

Mouse spider harbors a mild venom that is delivered through its fangs when biting. In adults, this venom serves a dual function, aiding in both subduing prey and defense. Typically, smaller mammals may experience mild discomfort and localized swelling upon being bitten. However, insects, which often fall prey to mouse spider, may be paralyzed or killed. Humans and larger animals like dogs and cats usually suffer minimal effects, usually no more than a temporary pain or irritation at the site of the bite.

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Bite Humans

Mouse spider is not known to exhibit biting behavior towards humans. Instances of mouse spider biting humans are extremely rare and generally only occur when these animals are provoked or handled, as a defensive reaction. As an adult, their bites are mild and without significant consequences.

More Effects of Mouse spider

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