Reduction of outdoor lighting or changing white light bulbs to yellow will help to attract fewer night-flying insects and thus reduce the spider populations. Reduction of other insects in and around a home will reduce the food available to the spiders, and removal of debris and lumber piles will help to reduce harborage sites. Sweeping is not likely to kill the spiders, but pyrethroid insecticides provide excellent knockdown and control. Sweeping of webs to remove them is an important step in cellar spider control, as these spiders do not reuse their own silk, and the webs continue to accumulate. There may be either 6 or 8 eyes, depending on the species, and the outer 3 eyes on either side of the head are arranged in a close triangle. Cellar spiders have long peanut shaped bodies, while daddy long legs typically have much rounder and fatter bodies. The color is a yellowish brown and the legs may be as long as 2 inches. By Chris / AugCellar spiders and harvestmen are often confused and this happens because the term daddy longlegs is used for both of them. The female creates an egg mass of about a dozen eggs, and holds it in her jaws until the eggs hatch.Ĭellar spiders are easily identified by their extraordinarily long and thin legs, which are attached to their elongate and thin body. Size The body will reach a maximum length of up to 10 mm (less than half an inch) and its legs may grow to around two inches long (51 mm). These spiders have been known to feed on black widow spiders. Sometimes called the Daddy Long-legs Spider it is relatively easy to identify due to the very long legs and cylindrical body. ![]() They hang upside down on their webs, and when disturbed they will begin to shake and bounce the web noticeably, or they may drop off the web and run to hide. Their long legs make them very clumsy when attempting to walk. Webs typically appear under the eaves of roofs, around porch lights, within garages, and indoors around windows where the light may draw small insects that the spiders feed on. Their primary crime is the messiness of their webs, which are thin and flimsy but tend to gather dust and floating debris, as well as the remains of the insects the spiders have fed on. The cellar spiders are incapable of biting humans and are harmless to us and our pets. However, the true Daddy Long-legs is another animal entirely, called the Harvestman. Differences Between Cellar Spiders and Daddy Long Legs: When trying to identify if you’re dealing with a cellar spider or a daddy long leg, you should focus on the body. The cellar spiders are often called “Daddy Long-legs” due to their very long, thin legs. ![]() Several dozen species of Pholcids are native to North America, with the three species listed above the most common to be found in and on structures.
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