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The tiny red "spiders" commonly found in gardens and on farms are not actually spiders but are a type of arachnid called spider mites. Spider mites are considered pests, live in large groups, and feed on a large variety ... More »

www.reference.com Pets & Animals Bugs Spiders

The most well-known black and red spider is the black widow. There are many regional variations of black widows, but they can all be identified by the red hourglass shape on their abdomens. More »

www.reference.com Pets & Animals Bugs Spiders

Red house spiders are not poisonous. Spider fangs are too weak or small to puncture human skin, but when they do, the venom is harmless and at most may cause redness, slight swelling and itching. More »

www.reference.com Pets & Animals Bugs Spiders
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Tiny red spiders that are approximately the size of a pin's head are called clover mites. They are most commonly seen in the spring, but infestations can occur in the fall. More »

www.reference.com Pets & Animals Bugs Spiders

Red house spiders are not poisonous. Spider fangs are too weak or small to puncture human skin, but when they do, the venom is harmless and at most may cause redness, slight swelling and itching. More »

www.reference.com Pets & Animals Bugs Spiders

There are more than 37,000 species of spiders worldwide, and all possess the same features that unite them with other members of arachnid family, including having eight legs arranged as two sets of four as well as lackin... More »

www.reference.com Pets & Animals Bugs Spiders

As of 2015, there are about 40,000 known species of spiders worldwide, and they live in almost every habitat in every continent except Antarctica. Despite this diversity, all spiders share some of the same common traits,... More »

www.reference.com Pets & Animals Bugs Spiders