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Mating season for Giant House Spiders typically occurs during the autumn months, when the weather conditions are optimal for their reproductive activities. Male spiders embark on daring journeys in search of potential mates. They leave their usual hiding spots and venture into the unknown, driven by their instinctual desire to find a female companion. Despite their name, these spiders can also be found outdoors, particularly in gardens and under bark. They have a remarkable ability to adapt to different habitats, allowing them to thrive in a variety of environments. In gardens, they may take up residence in shrubs or bushes, where they can find ample food sources such as insects and other small arthropods.
Relationship with Eratigena agrestis
Although it is rare, a bite from a giant house spider may occur when it feels threatened. However, bites are not serious and the giant house spiders’ venom is only harmful to individuals with specific allergies. Aside from its large size and threatening appearance, this spider does not pose much of a threat to people. Always contact a professional spider exterminator for help with giant house spiders. Giant House Spiders can reach a leg span of up to 4 inches (10 cm), with their body length averaging between 0.6 to 0.7 inches (15 to 18 mm).
Bite effects
The female carefully guards her precious offspring, ensuring their safety and protection. When it comes to capturing prey, Giant House Spiders showcase their impressive speed and agility. They are known for their lightning-fast reflexes, allowing them to swiftly pounce on unsuspecting insects. These spiders often construct intricate webs to aid in their hunting endeavors. The silk threads of their webs are designed to be sticky, ensnaring any insects that come into contact with them.
Where Do Giant House Spiders Live?
Based on collected data, the geographic range for Eratigena duellica includes 3 countries and 2 states in the United States. Eratigena duellica is most often sighted indoors, and during the month of April. The giant house spider is often confused with the similar looking hobo spider (Eratigena agrestis) that is also common in the Pacific Northwest. The hobo spider has very similar markings but is generally smaller than the giant house spider and has shorter legs. The related grass spider (Agelenopsis sp.) is also often confused with the giant house spider. These common house guests are particularly unwelcome because they have a venomous bite that is especially dangerous to kids and pets.
Eggs
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Females lay eggs in silken sacs, often hidden within their web. Spiderlings emerge and go through several molts before reaching maturity. The giant house spider is commonly found living in warmer climates where they can (reluctantly) live outside, and prefer to live inside houses and buildings.
The spider has a pattern on its abdomen, resembling three forward pointing arrows in a lighter color. As its name suggests, the giant house spider, Eratigena atrica, is one of the largest spiders found in Europe and the United States. The species is originally from Europe and was introduced to the Western United States over 100 years ago. It has now developed large populations in the Pacific Northwest and in the Great Lakes area. The giant house spider is the fastest spider in the world with recorded speeds of up to 1.7 ft/s (0.5 m/s).
thoughts on “Eratigena Atrica – Giant House Spider”
Giant House Spiders play a crucial role in regulating insect populations, acting as natural pest controllers in our homes. Their presence contributes to a balanced ecosystem, even within human dwellings. They exhibit a nocturnal lifestyle, actively hunting their prey during the night and retreating to their funnel-shaped webs during the day. The Western Black Widow is one of the few venomous spiders in California.
Eratigena duellica, the giant house spider, is a species of funnel weaver in the spider family Agelenidae. It is found in Canada, the United States, and Europe.[1][2] The related species Eratigena atrica is also called the giant house spider. The giant house spider is mainly brown with several characteristic markings. The cephalothorax (head) and the legs are a dark, reddish brown with a very dark brown oval shape on its cephalothorax. While they possess venom, it is not potent enough to cause harm. Bites from these spiders are rare and typically only occur when they feel threatened or cornered.
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Their bite can cause necrosis, which is the death of living tissue. It isn’t uncommon for victims of these spider bites to require skin grafts on the affected area. Domestic House Spiders are not aggressive, and they rarely bite. Luckily, even if they did bite, their venom is not harmful to humans. These small creatures start out life in an egg sac and reach maturity in about a year. This common house guest is typically dark brown or orangish-brown in color and has stripes on its legs.
Giant house spiders are often attracted to homes in search of prey or mates. They are drawn to quiet, dark areas where they can build their webs undisturbed. The bite of a giant house spider is comparable to the sting of a bee, but usually no more painful than that. The kind of venom they carry is not dangerous to humans, but it may cause pain and swelling in rare instances. The abdomen of the spider is relatively small and lighter, almost yellowish brown and gray, dark brown or black.
Wild Explained is an independent, advertising-financed publisher and comparison service. We compare different products with each other based on various independent criteria. If they do bite, it’s usually not severe and is similar to a bee sting.
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