Furthermore, they have a leg span of 1.8 inches. The body of a female giant house spider can grow to almost three-quarters of an inch. Given the mass reproduction capabilities, house spiders can cause a large infestation if not managed. The Giant house spider is the largest type of house spider. House spiders usually live for a year post maturation. Egg sacs hang from the web for about a month before the spiderlings hatch. In her lifetime, a female house spider can produce up to 12 egg sacs, with 150 to 400 eggs within each sac. This can occur when putting on clothing or shoes where a house spider has inhabited. Bites are possible if a person comes in direct contact with a house spider unknowingly, startling the arachnid. Bites cause moderate pain and leave a red mark around the bite area for up to 24 hours. House spider bites are uncommon, and their venom does not pose a safety concern to humans. Once caught, they paralyze their freshly caught meal with their venom, containing neurotoxins, and wrap it in webbing. House spiders build their webs to trap insects, especially cockroaches, and even other house spiders. While they have a wide range in length from 2 to 50 millimeters, the most common house spiders average 3 millimeters in width and 6 to 8 millimeters in length. House spiders are shades of white, brown or black, with spots on their abdomen and comb-like hairs on their 8 legs. Common indoor habitats include attics, crawl spaces, basements, ceilings (especially ceiling corners), window frames, closets and beneath furniture. Once inside, it prefers to build its web in dark secluded areas with minimal human interaction, and where there is an abundance of insects to feed on. The house spider (Parasteatoda tepidariorum), also known globally as the American house spider, stays true to its name by commonly invading houses, garages, barns and other manmade structures.
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