Bug Identifier
Common Bed Bug
Community identification

Common Bed Bug

Cimex lectularius

Order & Family
Order Hemiptera; Family Cimicidae
Size
4 to 5 mm (roughly the size of an apple seed) when fully grown.
See this bug in the Encyclopedia

Natural Habitat

Human dwellings, specifically sleeping areas such as mattresses, bed frames, headboards, and cracks or crevices near beds.

Diet & Feeding

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

Behavior Patterns

Nocturnal insects that stay hidden during the day and emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to molt into the next stage.

Risks & Benefits

Risks include itchy skin welts, allergic reactions, and psychological distress/insomnia. They are not known to transmit diseases to humans. There are no known ecological benefits to human environments; they are considered significant pests.