Black widow spider: Known for their red hourglass marking and venomous bite.While they are not known to be life-threatening, their bites can lead to severe cramping, nausea, a rise in blood pressure and vomiting. > Brown recluse: A venomous species identified by the fiddle shaped marking behind their head. The brown recluse has a potent bite that attacks and kills living tissue, leaving bite victims with painful sores and sometimes disfiguring scars. The brown recluse hides in warm, dark environments and is sometimes found in closets, clothing or beds. > House spider: One of the most common spider species found in American homes. This species selects sites for their webs at random. Their webs are generally found in garages or crawlspaces where they usually live undisturbed. > Wolf spider: A large, hairy species often confused with the tarantula. Wolf spiders are commonly found in basements and cellars. They are active hunters, meaning they do not construct webs. Wolf spiders look more dangerous than they actually are. > Orb weaver spider: Best known for their elaborate webs, which are spun at night and consumed each morning. These spiders vary in size and color and are often found in gardens or landscaped areas around the home. > Cellar spider: Also known as "daddy long leg" spiders. This species prefers to nest in dark, damp environments. These spider are commonly found in the basement or cellar. Cellar spiders pose no threat to humans and are beneficial because they often help control insect and spider populations.One of the most important things you can do is check your home for other insects that may attract spiders. Daniel reported that it would be a good idea to "turn your lights off outside, unless you're expecting someone, because other insects, like moths, are attracted to the lights and spiders are attracted to those insects."Duckworth said, overall, the best thing to do would be to "have your home serviced regularly by any pest control company to be absolutely sure that your home won't attract spiders."Heed our advice this Halloween to be sure that the only spiders in your home are the ones you use to decorate.