It is currently undetermined if their bite causes necrotic lesions in humans. Hobo spiders are one of the most common indoor spiders found in northern Utah. Like other wolf spiders, they are not of medical concern. Giant wolf spiders (1½-2 inches in diameter) are commonly encountered in Utah in the fall. Wolf spiders have an easily identified eye pattern - four smaller eyes on the bottom, two large eyes in the center, and two smaller eyes on top. This is a contrast to other spiders that use webs to capture their prey. Wolf spiders are aptly named because of their hunting methods of stalking, ambushing, pouncing and capturing prey. Cellar spiders are not dangerous to people. Having only six eyes and a “violin” pattern behind their eyes, these spiders can resemble brown recluse spiders to the untrained eye. Their cobwebs can often be seen in ceiling joists forming large mats. So, perhaps they should be appreciated more than feared.Ĭommon spiders you may see this fall include cellar spiders, wolf spiders and hobo spiders.Ĭellar spiders are named because of their habit of gathering in dark, cool and moist places - usually cellars. They come in a wide array of colors and shapes, and their diversity in ecology and behavior is truly incredible. The vast majority of spiders are also unaggressive and can even be considered docile. They are predators of insects and are also an excellent food source for insects and wildlife that we often enjoy, including praying mantises, birds and mammals. Spiders are highly beneficial to the environment and people. Fortunately, these encounters do not need to be scary, because most species of regional spiders are not risky to humans. This happens as spiders near the end of their life cycles and are searching for mates and places to lay their egg sacs. As fall temperatures cool, spider encounters in homes become more common.
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