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Running crab spider

Running crab spider

Philodromus dispar

A species of Philodromus, Also known as House crab-spider

The running crab spider (Philodromus dispar) hunts small flies, but it doesn't build a web like other spiders. It often searches for its prey near houses. The female spiders lay their eggs into cocoons that are attached to leaves. Then, they guard those eggs until they hatch in the fall.

Toxic to Animals
Toxic to Animals
General Info About Running crab spider
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Attributes of Running crab spider
Colors
Brown
Black
White
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
The Running crab 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
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
The Running crab spider typically preys on other arthropods and does not directly affect plants.
Biting animal or pet
Yes
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Species Status of Running crab spider
It is widespread in much of the southern half of Britain, but not recorded north of Westmorland. It is widespread in western and central Europe.
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Distribution Area of Running crab spider
Europe, Turkey, Caucasus, Russia, Iran, United States, Canada
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Appearance of Running crab spider
The male is shiny and iridescent black or dark brown with white edges. The spider is about 5 mm long.
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Adult Size of Running crab spider
5 mm
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Predators of Running crab spider Larvae
Frogs and toads, birds, larger spiders, insectivorous insects such as ants and wasps
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Predators of Adult Running crab spider
Birds, lizards, large spiders, insectivorous insects like praying mantises and assassin bugs
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Scientific Classification of Running crab spider
Tips for Finding Running crab spider
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How Can You Attract Running crab spider
Since running crab spider is a predator, typically no trap food is used to attract this creature as it hunts living prey.
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When is the Best Time to Observe Running crab spider
The most suitable time to find running crab spider is during its active periods, which may vary but are often during daylight hours when its prey is available.
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What is the Best Weather to Observe Running crab spider
The suitable weather for finding running crab spider is usually dry and warm conditions as it may not be active during cold or inclement weather.
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How and Where Can You Find Running crab spider at Different Life Stages
Egg Running crab spider egg sacs are often hidden in secluded areas. Look for them in undisturbed corners, behind furniture, in barns, or under loose tree bark.
Juvenile Running crab spider spiderlings can be found around the hatching site. Check for tiny spiders in web clusters nearby their mother's web.
Juvenile running crab spiders are more mobile and can be spotted hunting small insects. Search for them on plant leaves, along walls, or under rocks during warmer parts of the day.
Adult Adult running crab spiders are the largest and easiest to spot. They might be found on the move or in their hunting stance on flat surfaces, such as tree trunks, walls, or rocks. Search for adult running crab spiders by carefully inspecting these areas.
Are Running crab spider harmful?
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Harmful Effects of Running crab spider
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Toxic to Animals
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Toxic to Animals

The species running crab spider has a mild level of toxicity that can affect various animals. It delivers its venom through fangs, primarily when it is an adult. When it bites, humans and animals like dogs and rats may experience discomfort or mild symptoms due to the toxins. Even smaller creatures, such as insects, can be affected by its venom, which serves to incapacitate or deter its prey as well as provide a line of defense against threats. The reaction to its venom can vary among different groups of animals, with some showing greater sensitivity than others.

More Effects of Running crab spider

Common Questions People Also Ask
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