Bug Identifier
Bed bug
Community identification

Bed bug

Cimex lectularius

Order & Family
Hemiptera; Cimicidae
Size
Adults are about 4–7 mm long; the pictured insect appears consistent with this size range.
See this bug in the Encyclopedia

Natural Habitat

Indoor human dwellings, especially mattresses, bed frames, upholstery, and cracks near sleeping areas.

Diet & Feeding

Feeds primarily on blood, usually human blood, by piercing skin with specialized mouthparts.

Behavior Patterns

Mostly nocturnal and attracted to body heat and carbon dioxide. They hide in crevices during daylight, and females lay small eggs in sheltered locations.

Risks & Benefits

Bites cause itchy, sometimes persistent skin reactions but bed bugs are not established as important disease vectors. They provide little meaningful ecological benefit in homes.