There are many different types of spiders, and some can be difficult to identify. One way to identify spiders is by their color. Black and brown spiders are among the most common, and they can often be distinguished by the presence of white dots on their bodies. These dots may be arranged in a pattern or be random. They may also be found on the legs or abdomen. If you see a spider with white dots, it is likely a black or brown spider. Some black and brown spiders may also have other markings, such as stripes or patterns. However, the presence of white dots is a good indicator that the spider is one of these two colors. If you are still unsure, you can always consult a guidebook or ask an expert for help in identifying the spider.