Dangerous Spiders are beneficial creatures since they capture and consume many pest insects. Spiders are beneficial creatures. Because they feed on large quantities of insects, they should be tolerated as much as possible in the home and garden. Spiders are not insects.
Insects have six legs.
There are over 3,000 species of spiders in the U.S. and only a small number of these are dangerous to people. Cases of Mistaken Identity People often think they have been bitten by a spider when the culprit is actually a flea, tick, mite, or even a disease condition. Very few spiders are equipped with mouth parts that can pierce human skin. If the bites you are discovering are small, mild, and disappear within a day or two, there is probably nothing to be concerned about. Try to capture the offending spider, drop it into a small jar of rubbing alcohol, and save it for identification.