Common House Spider

Fascinating facts about the Common House Spider

• The common house spider originated in Asia but humans have carried it across the globe, establishing populations in Canada, the United States, South America, Europe, Morocco, Turkey, the Caucasus, Russia from its European frontiers to the Far East, Saint Helena, South Africa, the Seychelles, New Zealand and Hawaii. Its ability to live in and near human dwellings has allowed it to thrive wherever buildings provide shelter.
• In South Africa the common house spider occupies elevations from 1,246 to 1,513 metres above sea level, where it has been recorded in the Fynbos, Nama Karoo and Savanna biomes. Despite this mountainous habitat, the spider is also a frequent resident of human structures, weaving its three-dimensional webs in dark corners of buildings.
• A mature female common house spider lays a single egg sac containing on average 149 eggs, each about 0.59 mm in diameter and weighing roughly 0.12 mg. After hatching, the spiderlings remain in their mother's web for several days, gaining protection while they develop. This reproductive strategy, with a modest clutch size and brief maternal care, enables the species to maintain steady populations in the varied habitats it occupies.
• Bigger female common house spiders can lure juvenile skinks into their webs by dangling the remains of flies, turning the sticky structure into a makeshift bait station. The females, which measure between 5 and 6 mm in body length, often build three-dimensional cobwebs in dark corners of buildings where they remain hidden.
• When the insects caught in a common house spider's web dry out, the spider drops the desiccated remains to the floor, clearing space without having to rebuild or relocate the web. This behaviour follows the spider's typical feeding routine of capturing small household pests on its three-dimensional cobwebs. The webs are usually placed in dark corners of human structures, allowing the spider to remain concealed while it manages its prey efficiently.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Common House Spider

In the shadowy recesses of our domestic domains, a diminutive yet fascinating figure weaves its intricate existence, the Common House Spider navigating the mundane world with an air of stealthy purpose. With delicate, almost ethereal steps, it traverses the cracked plaster and worn woodwork, a masterful architect spinning webs of gossamer beauty that shimmer like tiny, ghostly orbs in the faint light. As it moves, the spider's unassuming presence belies a remarkable industry and cunning, its very ubiquity a testament to its enduring success in the most unlikely of habitats.

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