Bug Identifier
Bed Bug
Community identification

Bed Bug

Cimex lectularius

Order & Family
Hemiptera (order), Cimicidae (family)
Size
Adults are typically 4-5 mm long (about the size of an apple seed). Nymphs (young bed bugs) are smaller.
See this bug in the Encyclopedia

Natural Habitat

Primarily found in human dwellings, especially in bedrooms. They hide in cracks and crevices in mattresses, bed frames, furniture, and walls.

Diet & Feeding

Strictly hematophagous, meaning they feed exclusively on the blood of warm-blooded animals, primarily humans. They typically feed at night when hosts are asleep.

Behavior Patterns

Nocturnal; they hide during the day and come out at night to feed. They are attracted to carbon dioxide and body heat. They leave behind fecal spots (digested blood) on surfaces.

Risks & Benefits

Potential risks include itchy red welts from bites, allergic reactions, secondary skin infections from scratching, and psychological distress. While they do not transmit diseases, they are a significant nuisance pest. There are no known benefits.