Common House Spider Habits

Written by ben jones
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Common House Spider Habits
Household spiders can live inside or outside a house. (spider image by Lytse from

The term "house spider" refers to a specific type of spider (Achaearanea tepidariorum) as well as to any spiders that may inhabit a human household. All spiders capture bugs for food and produce silk. Other behaviours may vary but should be generally similar.


Most household spiders are web builders. Spiders usually build webs in sheltered, out-of-the-way places. Webs are intended to capture insects that wander into the path of the web. Webs can also serve a variety of other purposes, such as shelter, living space, mating space and places to lay egg sacs.

Some household spiders are hunters, which means they do not capture their prey through the use of webs. They may still spin webs as a way to hide themselves or to store eggs.


Web-building spiders wait for their prey to become trapped in their web. Hunters generally wait for prey to come near to them, then pounce.

Most spiders consume their prey alive. They use their fangs to inject venom into captured prey. The venom immobilises the prey. The spider then injects the prey with fluids that digests them from the inside. The spider then sucks out the liquefied food.

Common House Spider Habits
Household spiders eat insects that many consider pests. (spider and wasp image by Artem Latotin from


Spiders generally mate several times per year, and a female may mate repeatedly with the same male or with several different males.

Most female spiders weave orb-shaped egg sacs that may contain several hundred eggs. The spider may keep the egg sac with her, wrapped around her body. Most often, the spider will suspend the egg sac from a web in a corner.

Common House Spider Habits
Most spiders hide their egg sacs. (spider image by red 2000 from

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