Bug Identifier
Common Bed Bug
Community identification

Common Bed Bug

Cimex lectularius

Order & Family
Order Hemiptera; Family Cimicidae
Size
Approximately 4–5 mm long when adult (about the size of an apple seed).
See this bug in the Encyclopedia

Natural Habitat

Typically found in human dwellings, residing in cracks and crevices, mattresses, bed frames, and upholstered furniture.

Diet & Feeding

Obligate hematophages; they feed exclusively on the blood of warm-blooded animals, primarily humans.

Behavior Patterns

They are nocturnal, emerging from hiding places at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to progress to each stage.

Risks & Benefits

Risks include itchy skin welts, allergic reactions, and psychological distress/insomnia. While they do not transmit pathogens, they are a significant sanitary pest that is difficult to eradicate. There are no known benefits to the ecosystem.