Southern House Spider

The southern house spider is abundant in southern California and will often be found in cracks and crevices on a house exterior, barns, and the likes. This spider is often confused with the brown recluse because they have the same color.  However, the southern house spider is larger and does not have a distinctive violin shape on their cephalotorax.

Yellow Sac Spider

The yellow sac spiders are one of the most common harmful spiders found in southern California. They do not create webs, but create molting chambers instead. They are yellow or beige and their first pair of legs are longer than the rests. They can be found on walls, ceilings, baseboards, woodpiles, and the likes.

Black Widow

The female black widow spider is known to be the most dangerous spider in Southern California. An identifying marking for this spider is its reddish hourglass shape on the underside of its abdomen. The black widow is common in the deserts of the American Southwest and are common during the warmer months.

Brown Recluse

The brown recluse is most dangerous to children and should be avoided when seen. This spider is brown in color with a violin shaped marking on its cephalotorax. The most common identifying marking for this spider is its six eyes that are arranged in pairs. It is rarely seen in California, but it can be seen in the south.

American House Spider

This spider prefers human dwellings and may often surprise homeowners for being in places where they should not be. They can be found building their cobwebs in the corners of rooms and ceilings, garages, sheds, under eaves and porches, and so on. The American house spider may also bite when threatened and may cause some itching and swelling, but can trigger some allergic reactions in sensitive individuals.

Daddy Longlegs

This spider is different from other spiders because it has only one region compared to other spiders that have two. It has slender long legs that can easily break off. This spider can be found on windows, ceilings, closets, and in sheltered places. They will eat decomposing vegetative matter and even on dead insects. They do not have fangs or venom, which makes them harmless.

Domestic House Spider

The domestic human spider is common all over the world and not just in California. They are also known as barn funnel weaver spiders. They are dark orange or brown with dark bands on their legs. They also have a pale mark on their breastplate.

Jumping Spider

The jumping spider is common near or around human dwellings and are known to be harmless. Their acrobatic nature makes most people feel fascinated with them, although some have reported that they were bitten by them. But, like most spiders, the jumping spider will only bite when threatened. Results of the bite may vary from the sensitivity of an individual. Those who were bitten may experience some swelling and itching at the site of the bite that may last for several days.

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