Bedbugs can be identified by distinctive size, shape and color. They are tiny apple-seed-shaped insects that do not have wings, are reddish-brown in color, and are roughly 0.25 inches long. Bedbugs also produce oval-shaped eggs that are 1 millimeter long and pale yellow in color.
Bedbugs leave behind reddish or rusty stains on mattresses and other fabrics if they are squashed. They also deposit their excrement on these surfaces, which looks like a tiny dark spot that was made by a marker. Bedbugs hide in cracks and crevices during the day and then leave their hiding places to feed on people and animals at night.