Bed Bug

Human dwellings, specifically in cracks and crevices, mattress seams, bed frames, and furniture near sleeping areas.

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

Mainly nocturnal; they emerge at night to feed and hide during the day. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to molt to the next stage.

Risks include itchy welts, allergic reactions, and psychological distress/insomnia. They are not known to transmit diseases to humans but are significant household pests. No known ecosystem benefits in human environments.