Bed Bug (Nymph/Hatchling)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: Nymphs range from 1.5 mm (first instar) to 4.5 mm (fifth instar).

Bed Bug (Nymph/Hatchling)

Natural Habitat

Found indoors, primarily within crevices of mattresses, bed frames, furniture, and wall voids in human dwellings.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive insects that hide during the day and emerge at night to feed. They undergo incomplete metamorphosis with five nymphal stages, each requiring a blood meal to molt.

Risks & Benefits

No known ecosystem benefits. Risks include itchy skin welts/bites, allergic reactions, secondary skin infections from scratching, and significant psychological distress or insomnia for residents.

Identified on: 5/13/2026