How Do I Identify Different Kinds of Spiders?

There are more than 37,000 types of spiders know to man. Many are difficult to identify as spider species are similar in their characteristics and markings. Spiders differ from traditional insects as they have eight legs and two body parts. While some rare spiders can only be identified by an arachnologist, more common species can be identified by the average person. This can be done by examining the spider's physical characteristics, natural habitat and distinctive markings.

Things You'll Need

  • Container with clear lid
  • Microscope
  • Measuring tape
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Instructions

    • 1

      Tape the measuring tape to the inside of the container. The tape should run across the base of the container and up the walls.

    • 2

      Capture the spider in a container which will act as a temporary holding cell. Secure the clear plastic lid onto the container. This will allow you to examine the spider without having to handle it.

    • 3

      Measure the spider's body size using the measuring tape. This can easily be accomplished once the spider climbs into the base or sides of the container.

    • 4

      Observe the spider while in the container. Look for unique colorings, hairs on the body or legs, arrangement of eyes or specific markings such as spots or strips. Use the microscope to get a closer look at the spider's physical characteristics.

    • 5

      Determine where the spider is residing. Spiders commonly live in woodpiles, under stones, in piles of rubble and in undisturbed basements and garages. The geographical location of the spider will also narrow down the species results.

    • 6

      Examine the site of the spider's bite. If you have been bitten by a spider, the appearance of the bite site can help identify the species. The area of impact may be painful and cause blistering, headaches, muscular pains, sweating or vomiting.

    • 7

      Identify the type of spider through a spider identification chart. These will provide photos and information on the most common species of spiders.