Bed bug

Human dwellings, primarily found in cracks and crevices, bed frames, mattresses, and furniture nearby sleeping areas.

Obligate hematophages (blood-feeders), typically feeding on human blood but may also bite other warm-blooded animals.

Nocturnal and elusive; they hide during the day and emerge at night to feed. They undergo incomplete metamorphosis with five nymphal stages that each require a blood meal to progress.

Risks include itchy allergic reactions to bites, sleep deprivation, and psychological distress. While not known to transmit diseases, they are a significant domestic pest requiring professional extermination.