House Spider Facts

Updated November 21, 2016

House spiders are common and can be found all over the world. In houses, they can be found crawling around dry sinks and bathtubs. There are many different species of house spiders, including the grey house spider and the hobo spider. These arachnids are brown and have long legs. The females are bigger than the males. They have eight legs, which have a mixture of light and dark brown colouring. Hobo spiders are brown with short hairs that grow on their legs. They range from 12mm to 18mm long. House spiders also have eight eyes and fangs.


The house spider comes from Europe, but has travelled all around the world by way of man, and now has found a home on all of the different continents. House spiders can even be found in Antarctica. They spend the summer outdoors and head inside to find dry areas in the fall. The hobo spider found its way to the United States on ships that ended up in Seattle. They made their way through the rest of the country from there.


House spiders eat millions of different insects every year. They capture their food by making webs to trap their prey. Spiders start spinning their webs before dusk, during which time flying insects become airborne. All house spiders have venom with which they subdue their victims. Not all species of spiders, however, have venom that is hazardous to humans.


Spiders who spin webs have at least two pairs of glands that make liquid silk. The silk is liquid only until it touches the air, at which time it becomes hard. Spider’s produce sticky silk that stretches as well as dry silk that does not stretch. The insects that spiders catch are caught by the sticky version of silk. The spiders silk is used not only for making webs, but for wrapping eggs and wrapping prey, as well.


The three basic steps of reproduction for spiders include a male finding a female, the male and female mating, and then the female laying and protecting her eggs. Spiders hatch out of egg sacs that are covered in silk. When spiders are born, each kind knows how to spin a specific pattern of web.


There are some spiders that have hazardous bites. The hobo spider, which is often referred to as the aggressive house spider, is one species in particular that should be avoided. The hobo spider, along with widow spiders and the brown recluse spider, live in the United States and have venom that is said to be dangerous to humans. House spiders are brown spiders with eight long legs. They can be spotted in houses, often in sinks and bathtubs. Hobo spiders in particular are brown with short hairs that grow on their legs. They range from 12 to 18mm long.

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