Bed bug

Found indoors worldwide, primarily residing in cracks and crevices of mattresses, box springs, headboards, and furniture frames.

Obligate hematophages that feed exclusively on the blood of humans and other warm-blooded hosts.

Nocturnal insects that emerge from hiding primarily at night to pierce skin and feed, retreating into dark harborages during daylight.

They do not transmit infectious diseases, but their bites cause itchy welts, allergic reactions, and severe psychological distress. They offer no ecological benefits to humans.