Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. This information is for educational purposes only. Quentin Tyler, Director, MSU Extension, East Lansing, MI 48824. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. Wolf Spider (Family: Lycosidae) In Human Hand Wolf Spider (Family: Lycosidae) in burrow Treating basements and crawlspaces with a residual insecticide (like Bayer Advanced Home or Ortho Home Pest Defense) may reduce their numbers.īe sure to read and follow all instructions and safety precautions found on the label before using any pesticide. These spiders occur in very low numbers, and usually homeowners encounter only one or two of them.Ĭhemical control is not necessary unless large numbers are found. Wolf spiders normally enter the house near ground level and are normally encountered in basements, crawlspaces, and breezeways. Female wolf spiders carry their young on their backs for a considerable time after they hatch. Most wolf spiders hunt at night but occasionally they can be found during the day. Others are concerned that they might be the brown recluse spider which is not known to occur in Michigan. Wolf spiders are usually a shock to people who are unfamiliar with them because of their large size and some have mistaken them for an escaped pet tarantula. Some live in burrows in the ground and ambush their prey as it crawls past the opening of the burrow. Most lycosids do not construct snares (webs) but hunt their prey on the move like wolves do (hence their common name). Their venom is not particularly dangerous. They are not known to be aggressive, but they will bite in self-defense if handled roughly. Wolf spiders or lycosids are fairly common predators that feed on large insects and other spiders.
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