Bed bug

Indoor environments, primarily residing in furniture, mattresses, baseboards, and wall crevices near human sleeping areas.

Obligate hematophagous; they feed exclusively on the blood of warm-blooded animals, primarily humans.

Nocturnal and highly elusive; they emerge at night to feed and hide during the day. They undergo incomplete metamorphosis (egg, nymph, adult) and can survive months without a blood meal.

Risks include itchy skin welts, allergic reactions, psychological distress, and secondary infections from scratching. They are not known to transmit diseases to humans. There are no ecological benefits in human habitats.