Bed bug

Found exclusively indoors, primarily hiding in cracks, crevices, mattresses, and furniture near human sleeping areas.

Obligate hematophagous ectoparasites that feed entirely on the blood of humans and other warm-blooded animals.

Nocturnal pests that emerge at night to pierce skin and feed, retreating into dark harborages during daylight hours.

Bites cause localized itching, allergic skin reactions, and significant psychological distress; they provide no ecological benefit to humans.