American house spiders will have dark markings on their abdomens. Males are smaller, measuring 1/8 to 3/16 of an inch. Their legs are often yellow with dark rings. Types of American Spiders American House Spider Identificationįemale spiders of this species range in size from 3/16 to 5/16 of an inch and vary in color from dirty white to brown. The spider will then bite its unwitting victim and inject venom, making it easier to digest. These webs are what the spiders use to entrap their live prey, usually insects. You’ll notice that these spiders weave messy, billowy cobwebs that are imitated by Halloween decorations. They can be found in basements, crawlspaces, and attics. This arachnid prefers dark, moist environments. They will deposit at least 12 of these sacs during their lifetimes. Life Cycle & HabitatĪmerican house spiders are found during every season and will mate at any time.įemales produce brown egg sacs that measure between six to nine millimeters in diameter. If more severe symptoms like dizziness or nausea occur, immediately seek medical attention. Redness and some swelling may occur, but the symptoms should subside on their own. The most severe bite from one of these spiders may feel similar to a bee sting. While American house spiders are not known to be dangerous to humans, they can still bite. These spiders, as residents of homes all over the world, generally live in peace with humans unless they feel threatened. Also, as its nickname suggests, these spiders are often found in homes, garages, sheds, and even in furniture. The American spider, also known as the common house spider, is actually found all over the world, not just in the United States. Organic Tick & Mosquito Control Program.
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