Adult bedbugs are approximately the size of an apple seed and are mahogany brown in color. Babies can be quite small, about the size of a grain of sand and are tan in color until they feed for the first time. They are quite elusive, hiding very well inside cracks and crevices between feedings making them very difficult to locate. Often the only signs of infestations are small drops of blood on the sheets that are excreted as they feed. Shed skins and fecal stains (which look like pepper glued to a surface) and eggs may also be observed tucked away in hidden locations. Identifications should never be based solely on bites shown. It is extremely difficult to see any signs of bed bugs during early infestation, so many people use our Bed Bug Detection monitors to help determine if bed bugs are present. --Mark