Bed bug, approximately 6mm in size, pausing along mattress seam to groom its antennae. It磗 important for bed bugs to keep their antennae clean as they are loaded with sensory receptors which help the bugs find their human hosts. This bug磗 abdomen is flat, a sign that it hasn磘 fed in several weeks. Bed bugs are able to survive several months without food. These insects have been notorious pests throughout history and are making a comeback in many cities throughout the world. They can survive for several months without food.