Bed Bug (Nymph/Hatchling)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: 1.5 mm to 4.5 mm (nymphs are smaller and often reddish after a blood meal).

Bed Bug (Nymph/Hatchling)

Natural Habitat

Indoor environments, specifically within human sleeping areas, including mattresses, bed frames, furniture, and wall crevices.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive; they hide in dark cracks during the day and emerge at night to feed. They undergo five nymphal stages, requiring a blood meal to molt into the next stage.

Risks & Benefits

Risks include itchy allergic reactions to bites, skin infections from scratching, and significant psychological distress or insomnia. They are not known to transmit diseases to humans.

Identified on: 1/13/2026