Bed Bug

Human dwellings, primarily in mattresses, bed frames, headboards, and cracks or crevices near sleeping areas.

Obligate hematophages (blood-feeders), primarily feeding on human blood.

Nocturnal parasites that hide during the day and emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to molt at each stage.

Risks include itchy welts, skin rashes, psychological distress, and potential allergic reactions; while they can carry pathogens, they are not known to transmit diseases to humans. They provide no known ecosystem benefits in human environments.