Bed bug

Found worldwide in human dwellings, typically hiding in crevices of mattresses, box springs, bed frames, and furniture.

Hematophagous; feeds exclusively on the blood of humans and other warm-blooded animals.

Nocturnal pests that emerge to feed at night, relying on carbon dioxide, warmth, and moisture to find hosts.

Bites can cause itchy red welts, allergic reactions, and severe psychological distress; they provide no ecological benefit to human living spaces.