Similar species: Though they also have long, thin legs and are also often called daddy longlegs, harvestmen (in order Opiliones) are quite different and unrelated. To distinguish it from other cellar spiders may require close examination of palps, “face” structure, carapace markings, and eye groupings. Perhaps the most common species in our area is the longbodied cellar spider, Pholcus phalangioides. Many common spiders in this family have 8 eyes arranged into three groups: 2 in the center of the face, and a cluster of 3 on each side of the central pair. Most have oval or rounded abdomens, sometimes described as “peanut shaped.” Females build nonadhesive, unorganized, messy-looking cobwebs, usually in corners or crevices. Some species have darkened joints on their legs, giving them a “knobby-kneed” look. This movement turns them into a blur, rendering them practically invisible to potential predators. Other characteristics add to their camouflage: Their gray, tan, or whitish color, small body size, and remarkable habit of “vibrating” or bouncing rapidly in their webs when alarmed. The tarsi (“feet”) are flexible, adding to the wispy impression they give. Every other month perimeter treatments around the exterior of the home are a great way to ensure your home stays spider free as well as help with other pest issues in and around your home and/or structure.Cellar spiders are inconspicuous, harmless, fragile spiders with extremely long, thin legs. However, due to the relatively short lifespan of environmentally friendly products as well as spider biology (long legs) limiting contact with the dried residual chemical, regular follow-up treatments are recommended to protect the home against future infestations. Treatment for spiders can be very effective. Outside treatment may include treatment of window and door frames, eaves and/or base of the home or structure to help reduce populations around the home as well discourage infestations in the near future. Typical treatment options may include treatment of the inside baseboards to quickly help eliminated spiders inside. Based on the technician’s findings and information from the customer we can make a proper diagnosis of the treatment strategy as well as recommendations for prevention in the future. Thorough inspection can determine level of activity in the home as well as location of sites where spiders will be predisposed to infest. Comprehensive spider service includes three steps: A trained pest management professional is crucial to resolving your spider problem. Spiders can be a serious pest problem for some customers if neglected, they can increase the risk of spider infestations and exposure to bites which may be harmful to individuals sensitive to their venom. However, only those spiders whose venom typically causes a serious reaction in humans are called “poisonous” spiders. Most spiders have toxic venom, which they use to kill their prey. Although spiders often are found on plants, they eat mainly insects, other spiders, and related arthropods, not plants. Spiders have eight legs and two body parts: a head region (cephalothorax) and an abdomen. Spiders resemble insects and sometimes are confused with them, but they are arachnids, not insects. This can be a disconcerting thought which is why many people like to control their populations inside while allowing them to perform their role of insect population control on the outsideĬontrary to popular belief, Cellar Spiders, also known as Daddy Long Legs, and Harvestmen are not poisonous to humans, and lack the ability to even puncture human skin due to how short their fangs are. Most spider bites occur as a reaction or for protection at night when spiders are more likely to move about in our structures and when we may roll over them during our sleep or sit on one in a piece of furniture. Even though spiders are beneficial due to their role as predators of insects and other arthropods, they still are a common Northwest pest as many people fear or dislike spiders because of their looks, speed of travel and sometimes reactive bites.
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