Spiders in Illinois

Many people believe that spiders are beneficial because they eat other pests. However, some are dangerous and need to be exterminated if they are found in your home. If you thinkt that you have a spider infestation, call us to get rid of them! (630) 451-8101

Very few spiders found in Naperville Illinois will actually bite a human and even fewer can actually cause fatal harm to a healthy adult, some spider bites can be very serious for children and the elderly. Biting spiders you might find in this region include:


Common Sac Spider

By far the most common biting spider found in the Naperville neighborhoods, common sac spiders are not particularly poisonous, though their bites are irritating. You will not feel immediate discomfort, but a mild sore can develop within a day or so of getting bitten. Usually, the sore will clear up within a week, and it can disappear even faster if you visit a doctor and get antibiotics to prevent secondary infections.

Brown Recluse

Though they are not common, brown recluses have been sighted in the Illinois. Their bodies measure about half an inch, not including the leg spread, and as the name implies they are tan to brown in color. If you are bitten, you may not feel anything until six to twelve hours later, and over the next several days the sore can become extremely painful, like an open wound or ulcer. Visit a doctor and call an exterminator immediately if you suspect you have a brown recluse bite.

Northern Widow

The term “black widow” can refer to a variety of spider species, all with a characteristic reddish hourglass mark on their backs. The Northern widow is the most likely to be found in the Midwest, though they are still uncommon. Black widow venom actually contains very powerful neurotoxins, so after being bitten you may experience spasms and back pain. Again, visit a doctor immediately if you suspect you have been bitten, then call an exterminator. Leave these potentially dangerous arachnids to pest control professionals.