Bed Bug

Human dwellings, specifically cracks and crevices in mattresses, bed frames, furniture, and behind wallpaper or baseboards.

Obligate hematophagous (blood-feeders), primarily targeting humans but also feeding on other warm-blooded animals.

Nocturnal parasites that emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to advance to each life stage.

Risks include itchy allergic reactions to bites, skin infections from scratching, and significant psychological distress or insomnia; they are not known vectors of disease. There are no ecological benefits to humans.