Adult bed bugs are small, but visible to the naked eye. An adult bed bug is from 1/4 – 3/8 inches long and reddish brown. Bed bugs have an oval shape with a flattened body when unfed; their body becomes swollen after they have fed. The young nymph (immature) that has just hatched from the egg is less than 1/10 inches long and nearly colorless, but it becomes red after taking a blood meal. There are five nymphal stages, with each stage slightly larger than the preceding one. Nymphs typically are yellowish brown to reddish brown.Bed bugs cannot fly, but they can walk very fast. They are able to cling tightly to surfaces, and they can fit into very small cracks and crevices where they often hide during the day.
Bed Bug Inspection Video
by Town and Country Pest Solutions
Photos courtesy Dr. Susan Jones and The Ohio State University Extension Office.