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. Ways to reduce bite risk from recluse spiders include: 1) keep beds away from walls remove bed skirts and items under the bed so that the only pathway to the bed is up the legs. To distinguish it from other cellar spiders may require close examination of palps, “face” structure, carapace markings, and eye groupings. Adult male long-bodied cellar spiders have a body length of about (6 mm). Adult female long-bodied cellar spiders have a body length of about -5/16 (7-8 mm) with front legs about 1 -1 15/16 (45-50 mm) long. Perhaps the most common species in our area is the longbodied cellar spider, Pholcus phalangioides. All cellar spiders have oval-shaped bodies that range in color from pale yellowish to light brown or gray.
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. Similar species: Long-legged cellar spiders (in the spider family Pholcidae) are sometimes called daddy longlegs, but they are definitely spiders: They. Sometimes there are tiny yellow, orange, or red blobs stuck on the body or legs: These are mites parasitizing the harvestman. The tarsi (“feet”) are flexible, adding to the wispy impression they give. Their chelicerae (mouthparts) are too small to bite people.
Cellar spiders are inconspicuous, harmless, fragile spiders with extremely long, thin legs.
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