Harvestmen do not have silk glands, so they cannot spin webs they also lack the venom glands that true spiders possess. Among the obvious structural differences are harvestmen’s having one apparently unified (usually egg-shaped) body, while true spiders have clearly separate head and abdomen regions. 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. Body length: 7-10mm Conservation status Common When to see All year round. To distinguish it from other cellar spiders may require close examination of palps, “face” structure, carapace markings, and eye groupings. An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information. 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. If you are dealing with cellar spider problems in your home, contact your local spider exterminators.Cellar spiders are inconspicuous, harmless, fragile spiders with extremely long, thin legs. An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information. They continuously add to it, creating large amounts of webbing which becomes a nuisance to remove and an eyesore in homes and commercial buildings. Many species of spiders consume their old web before making a new one, but cellar spiders do not. Cellar spiders are considered nuisance pests, due to the large amounts of webbing they produce. Historically, cellar spiders are not known to bite humans and, therefore, do not pose a health threat. Cellar Spider Behaviors, Threats, or DangersĪlthough cellar spiders do have venom, they aren’t a cause for concern. Male and female cellar spiders may be found in climate-controlled structures year-round. Adult female long-bodied cellar spiders have a body length of about ¼-5/16 (7-8 mm) with front legs about 1 ¾-1 15/16 (45-50 mm) long. Cellar spiders build irregular messy webs and are highly sensitive to vibrations and will close in on an unsuspecting insect rapidly if it happens to wander into its web. Indoors, are often found in damp cellars, basements, crawl spaces, garages, and dark, quiet places. ![]() In nature, cellar spiders usually live in the openings of caves, or crevices in cliffs, and other protected places. Cellar spiders are the natural enemy of large house spiders that live in homes, and will also feed on flies, bees, wasps, and even other cellar spiders when food is scarce. The legs are very thin and delicate and about six times the size of the body. It originates in subtropical climates across Asia. Their body and legs are translucent with grey hairs all over. Color: They have a yellowish-brown body with a big, gray patch at the middle of their cephalothorax. This spider is the most common species in homes, as they love warm habitats. Longbodied cellar spider Pholcus phalangoides carrying eggs. Size: Females are approximately 0.35 inches (9 mm) with 2.7 inches (7cm) leg span, while males are comparatively smaller, around 0.23 inches (6 mm). From egg to adult, immature cellar spiders take about one year to fully develop. The long-bodied cellar spider is in every basement corner. They target insects, other spiders, and small invertebrates, particularly ants. Like most spiders, cellar spiders are beneficial creatures that prey on other pest species. The detailed statistics below may not utilize the complete dataset of 157 sightings because of certain Pholcidae sightings reporting incomplete data. These spiders can be seen in corners and ceilings, usually hanging belly-up. The long-legged spiders also prefer higher levels of humidity. There have been 157 confirmed sightings of Pholcidae (Cellar Spiders), with the most recent sighting submitted on Januby Spider ID member michele115. Some species of cellar spiders are very common in homes, especially in garages, basements, and cellars, hence the common name. ![]() They are sometimes referred to as daddy longlegs spiders, which are quite different and unrelated. Cellar spiders are inconspicuous, harmless, fragile spiders with extremely long, thin legs.
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