In general, spider identification is characterized as follows:

  • Four sets of legs (eight legs total)
  • Six to eight simple eyes
  • Two jaws which in a hollow fang that connects internally to a poison duct
  • No antennae or wings
  • Males are generally smaller than females and may differ in coloration.

There are approximately 3,000 spider species in North America and 35,000 in the world. A week or more after mating, female spiders will lay anywhere from 20 to 100 or more eggs in a silken sac. Once hatched, most spiders can live for one to two years. All spiders are predators, paralyzing or killing their prey with venom; they feed by injecting a pre-digestive fluid into the body of their prey and then consuming the digested liquid food.

Spiders can be easily misidentified, especially between domestic house spiders, brown recluse spiders and hobo spiders. It is highly advised, if possible, to collect an intact spider specimen in a jar and call a pest control company to inspect the sample as well as your home for other signs of activity.

How are spiders harmful or a nuisance?

For the most part, spiders living outside are incredibly beneficial as they provide natural pest control against a variety of common insects. In North America, brown recluse spiders, hobo spiders and black widow spiders pose a danger to humans because their bites are painful and damage skin tissue. Most spiders are nocturnal and will hide when disturbed, unless they are tending egg sacs or young. Domestic house spiders create webs that become a nuisance for humans, but generally do not pose a health concern unless an individual is allergic to their bite, although some species are poisonous to humans.

What are some recommended spider control and prevention techniques?

Spiders vs. Insects
Spider video Spider extermination is generally only recommended if their presence indoors is intolerable or if harmful species are present. In some locations where spider populations are persistent, it is standard protocol to implement spider control and prevent their entry as a measure of health and comfort for occupants. Some prevention methods include removing existing webbing, correcting moisture issues and food sources (ie, tending to current pest issues), and scheduling routine air duct cleaning services. Contact us to learn more about spider pest control methods.