Spider Identification - the body of an adult black widow is about 1/2 inch long. The female black widow is normally shiny black, with a red hourglass marking on the underside of the abdomen. The marking may range in color from yellowish orange to red and its shape may range from an hourglass to a dot.
North America is home to about 3,400 of the categorized 40,000 species of spiders in the world. Spiders are known as Arachnids and fall under the class Chelicerata and order Araneae, taking various shapes and forms as well as colors and behaviors.
Zebra spiders are small black spiders with white hairs that form stripes. Zebra spiders are widespread across North America, Britain, Europe and the Holarctic. .
The majority of Kentucky's spiders are harmless to humans, even when they enter our living environments. This chart is designed to help with quick identification of spiders that are commonly encountered in homes, buildings, yards, and other urban environments. Click on the spider to read more about it. Spiders of Medical Significance.