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Types
Six distinguishing types of hunting spiders and three distinguishing types of web weaving spiders are common in North America. The six types of hunting spiders include jumping spiders, wolf spiders, fishing spiders, sac spiders, crab spiders and gnaphosid spiders. The three types of web weaving spiders common in North America include comb-footed spiders, orb spiders and grass spiders.
Function
All spiders have the capability of producing silk throughout their entire life span. Hunting spiders do not weave webs to catch their prey and therefore do not use their silk production for that cause. Hunting spiders use silk for weaving egg cases, drag lines and shelter.
Misconceptions
Most common spiders are small, and the majority of common spiders primarily feed on insects or other arachnids. Spiders play a major role in controlling insect population, and their contribution far outweighs the number of bites to humans. The majority of common spiders' venom is harmless to humans. A typical bite from a common spider tends to hurt less than an average bee sting. Common spiders are typically shy and often hide in non trafficked areas. It is not common for spiders to bite even when prodded.
Geography
Common spiders can be found anywhere within North America. They live in various areas and mainly prefer warm climates. Common spiders may live in a discreet area such as your kitchen cupboard to open exposed areas such as at the top of the highest mountain.
Features
Common spiders are similar to insects in the manner that they wear their skeleton on the outside of their body instead of on the inside. This provides outer armor for the common spider.