Bed Bug (Nymph phase)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: 1.5 mm to 4.5 mm (nymphs are smaller and translucent/yellowish)

Bed Bug (Nymph phase)

Natural Habitat

Domestic environments, specifically beds, furniture, and cracks/crevices near sleeping areas.

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: They are significant household pests that cause itchy welts, allergic reactions, and psychological distress. Unlike many other blood-sucking insects, they are not known to transmit diseases to humans. Benefits: None.

Identified on: 12/31/2025