Urban pest is a term used to describe pests that are commonly found in urban areas. Bedbugs, roaches, and rats are all examples of urban pests. Bedbugs are small, reddish-brown insects that feed on human blood. Roaches are small, brown insects that can be found in dark, damp places. Rats are larger rodents that can be found in sewers and other areas with food sources. All three of these pests can cause health problems and damage to property.