Bed Bug (First-Stage Nymph)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: 1.5 mm (first-instar nymphs) to 5 mm (adults)

Bed Bug (First-Stage Nymph)

Natural Habitat

Human dwellings, specifically in cracks, crevices, mattresses, and bed frames near sleeping hosts.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive; they hide during the day and emerge at night to feed. Nymphs require a blood meal to molt into the next life stage.

Risks & Benefits

Risks include itchy skin welts, allergic reactions, secondary skin infections from scratching, and psychological distress. They are not known to transmit diseases to humans.

Identified on: 1/12/2026