Bed bug

Found worldwide in human dwellings, nesting in mattress seams, furniture cracks, and dark crevices near sleeping areas.

Obligate hematophage, feeding exclusively on the blood of humans and other warm-blooded hosts.

Nocturnal and highly secretive, emerging primarily at night to pierce skin and feed before retreating to hidden harborages.

Bites cause itchy, irritated skin welts and psychological distress, but they are not known to transmit human pathogens.