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Cellar Spiders

Active Seasons

Illustration representing the spring season
Illustration representing the summer season
Illustration representing the winter season
Illustration representing the fall season

Appearance and Size Facts

  • Cellar spiders, sometimes called daddy long legs (not to be confused with a non-arachnid called a daddy long legs)
  • Gray to light brown in color
  • They have a very thin shape and are fragile spiders
  • With their legs expanded they appear much larger than they actually are
  • Size: The body ranges from 1/10 to 1/2 inch in length, but with the legs extended it may be up to 2-inches long

Behavior and Habitat of Cellar Spiders

When Cellar spiders are threatened by a touch to the web or when too large of prey becomes entangled, it vibrates rapidly in a gyrating motion in its web and becomes blurred and almost invisible. For this reason it has sometimes been called a ""Vibrating Spider."" Doing so might make it difficult for a predator to see exactly where the spider is, or may increase the chances of capturing insects that have just brushed their web and are still hovering nearby. If the spider continues to be harassed, it will retreat into a corner or drop from its web. Cellar spiders are web-weaving spiders and are distributed worldwide. They hang inverted in messy, irregular, tangled webs. These webs are constructed in dark and damp recesses, in caves, under rocks and loose bark, abandoned mammal burrows, and undisturbed areas in buildings and cellars (hence the common name ""Cellar spiders"").

Image of a magnifying glass

Signs of Infestation of Cellar Spiders

Cellar spiders hang inverted in messy, irregular, tangled webs. These webs are constructed in dark areas, such as caves, under rocks, loose bark, abandoned mammal burrows, and undisturbed areas in buildings and cellars.

An illustration representing a warning sign for bug infestation

Tips for Prevention of Cellar Spiders

Web removal with broom or vacuum.

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Cellar Spider Gallery

Photograph of cellar spider
Photograph of cellar spider number 2
Photograph of cellar spider number 3

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