Bed Bug

Found globally in human dwellings, typically nesting in mattress seams, bed frames, furniture, and cracks/crevices near sleeping areas.

Obligate hematophages, meaning they feed exclusively on animal blood, primarily from humans.

Nocturnal parasites that emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and can survive for months without a blood meal.

Risks include itchy allergic reactions to bites, sleep deprivation, and psychological distress. While not known to transmit diseases, they are difficult and expensive to eradicate. There are no known ecological benefits to humans.