Bed Bug

Found globally in human dwellings, typically residing in mattress seams, bed frames, cracks, crevices, and carpet edges.

Obligate hematophages (blood-feeders), primarily targeting humans but also feeding on other warm-blooded animals if humans are unavailable.

Nocturnal and elusive; they hide during the day and emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and can survive for months without feeding.

Risks include itchy bites, allergic reactions, secondary skin infections from scratching, and psychological distress (insomnia/anxiety). They are not known to transmit diseases to humans. There are no ecological benefits to humans.