What is the definition or description of: bed bugs?

Small biting insect: Bed bugs are small inscts which hide in furniture and carpet. They look like small apple seeds and leave telltale red-orange fecal material behind. The female insect bites humans at night leaving very itchy red bumps, often in a row on the skin. Bed bugs have been increasing within the usa for unclear reasons. The insects have developed resistance to many insecticides. The cdc has more info.

Cimex lectularius or: The bed bug is a parasite that is nocturnal. It can be transported on your clothing, luggage, second hand furniture etc. You can even get it using public transportation. It can go up to a year without feeding, so that allows it to just sit and wait until it catches a ride on something or someone. If you live in an apartment complex it may move from one unit to another. It is an insidious problem.