A bed bug is about 3 to 9 millimeters long, and bed bugs are often found in clusters. Discover how bed bugs are flattened and possess small swings with information from an entomologist in this free video on insects and bugs.
About the Author
Mike Quinn has a Master of Science degree in entomology from Texas A&M University. Quinn was the invertebrate biologist for Texas Parks and Wildlife for eight years, where he took the lead on most insect issues.