Small House Spiders in Pennsylvania: Identification, Prevention & Control

Living in Pennsylvania means sharing your home with small house spiders—common yet often misunderstood residents. Understanding these arachnids helps demystify their presence and promotes peaceful coexistence.

Several small spider species frequent Pennsylvania homes, including the common cellar spider, cellar webspinner, and cobweb spider. Typically measuring under 1/2 inch, these spiders thrive in quiet, undisturbed areas like basements, corners, and attics. While harmless, their presence can trigger anxiety, making accurate identification key to effective management.

Small house spiders in Pennsylvania often have slender bodies, long legs, and simplified eye patterns—usually eight eyes arranged in two rows. The cellar spider, for example, features long, delicate legs and a pale, translucent body. Unlike harmful species, they pose no medical risk and actually help control other household pests like flies and mosquitoes.

Prevention starts with reducing clutter, sealing entry points, and minimizing moisture. Using natural deterrents like peppermint oil or citrus sprays can discourage spiders without harsh chemicals. For persistent infestations, sealing cracks and maintaining clean living spaces significantly reduces attraction—keeping your home spider-free naturally and safely.

Small house spiders are a common, often beneficial part of Pennsylvania homes. By identifying them correctly and adopting proactive prevention strategies, you can enjoy peace of mind without unnecessary fear or chemical use. Stay informed, act early, and keep your home comfortable and spider-smart.

Learn the different types of common spiders in Pennsylvania, AND how to identify by sight or sound. How many of these species have YOU seen? There are over 45 species of spiders that inhabit Pennsylvania but in this article, we've narrowed it down to 15 species that you will most likely encounter living in your home.

Know about the venomous and non-venomous spiders that are native to Pennsylvania. Get details of their identification, color, size, and pictures. Learning Center House Spiders Overview Of House Spiders In Pennsylvania House (or "Domestic" or "American") spiders are the most common type of spider found indoors.

Other types of spiders include the wolf spider, brown recluse spider, hobo spider, and cellar spider ("daddy longlegs"). Do you see a spider in Pennsylvania and want to identify it? Here is the list of 60 common spiders you can encounter in Pennsylvania. This publication discusses the more common and important spider species in Pennsylvania, including two rarely encountered but medically important species.

Spiders found in Pennsylvania include 47 unique species from confirmed sightings by contributing members of Spider ID. It is important to remember that spiders seen in Pennsylvania are not bound by the territorial lines decided on by humans, therefore their distribution is subject to change. Occasionally, spiders can be found well outside of their known range due to being intentionally or.

What do house spiders look like? House spiders are pretty small-most range from about 1/4 to 1/2 inch long. They have round, light brown abdomens with darker markings and lighter tan heads and thoraxes. You're most likely to spot one in a corner somewhere doing its web.

Follow the tips found here to take an ideal photo and describe the spider so we can help with the identification. Spiders in Pennsylvania Acanthepeira Stellata - Starbellied Orb Weaver Acanthepeira stellata, commonly called the starbellied orb weaver, is one of the most remarkable and memorable orb weaver spiders. Its.

Easily identify common house spiders in Pennsylvania with our visual guide. Learn about their habitats, behaviors, and if they're harmful. Find your spider here.