Most common house spiders actually spend their entire lives indoors. House spiders tend to live in quiet, hidden spaces where they can find food and water.
Spots that are not fully visible or that have a lot of clutter make it easy for spiders to hide. This is why you will often find spiders in storage spaces, garages, eaves, sheds, light fixtures, and forested areas.
There is a variety of spiders that might enter your home. One of the most prevalent house spiders is the Parasteatoda tepidariorum common house spider , it is native to North America, but it can be found all over the world. Other common spiders that live in North America include; Pholcus phalangioides cellar spider , Lycosidae wolf spider , Eratigena duellica giant house spider , Salticidae jumping spider , and Kukulcania hibernalis Southern house spider.
Common house spiders are not inherently dangerous to humans. However, spiders and the webs they create can be a nuisance. Most house spiders only bite if they are in a life-threatening situation. Spider bites from the majority of common house spiders are not deadly. However, it is a smart idea to keep spiders out of your home because there are a few spiders in North America that can be dangerous to people.
These spiders include; Eratigena agrestis hobo spider , Cheiracanthium mildei yellow sac spider , Herpyllus ecclesiasticus Eastern parson spiders , and other non-venomous spiders that can have a painful bite.
The venom from a spider bite can cause moderate discomfort with short-term side effects. They usually spend their entire life cycle in, on or under their native building. If a large number appear at a specific season, it is usually late summer August and September —not a notably cold time of year! What you are seeing is sexually mature males wandering in search of mates. The females and young remain hidden for the most part, in crawlspaces, storage areas and other neglected rooms; wall and floor voids; behind furniture and appliances, etc.
In contrast, outdoor spider species are not adapted to indoor conditions. Any North American spider that needed artificial shelter for the winter, would have been extinct long before Europeans arrived!
Spiders are "cold-blooded" and not attracted to warmth. They don't shiver or get uncomfortable when it's cold, they just become less active and eventually, dormant. The few typical outdoor spiders that do end up indoors, die or at least don't reproduce. Spider Myths. Explore even more! Skip to main content Skip to footer Many people associate Autumn with falling leaves that have turned red, orange and yellow.
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