Bed Bug

Human dwellings, specifically sleeping areas such as mattresses, bed frames, and floorboards.

Obligate hematophages (blood feeders) preferring human blood.

Nocturnal, hiding in cracks during the day and emerging at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult).

Highly parasitic and a major pest; causes itchy bites and allergic reactions in humans, though not known to transmit diseases. No ecosystem benefits in human habitats.