Anatomy of a Bed bug
Bed bugs, often spelled as "bedbugs", are reddish brown, ovoid and wingless. Because they are dorsoventrally flattened, they have the advantage of hiding in crevices. The microscopic hairs lining their bodies distinguish them from other common insects. These tiny insects are easy to observe because they do not move quickly.
The shape of a bed bug's body is comparable to a lentil or apple seed. Hatchlings are as small as poppy seeds, while adults may grow up to 3/16-inch, or 5 mm, in length. A common misconception is that they are invisible to the naked eye; this is false as they are clearly large enough to see, and not fast enough to escape notice. Bed bugs range in color from translucent white when first hatched to dark brown or burnt orange as adults. Bed bugs redden immediately after consuming a host's blood, thus making them far easier to detect. Like most insects, bedbugs have 6 legs, a head, a thorax, and an abdomen.
If you believe you have identified a bedbug within your home, contact your local pest control company to arrange for an inspection.