Bed Bug (Nymph)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: 1.5 mm to 5 mm (nymphs are smaller and translucent/red after feeding, while adults are larger and flat brown).

Bed Bug (Nymph)

Natural Habitat

Indoor environments frequented by humans, specifically in cracks, crevices, mattress seams, and furniture near sleeping areas.

Diet & Feeding

Obligate hematophages (blood feeders), primarily feeding on human blood during the night.

Behavior Patterns

Nocturnal and elusive; they hide during the day and are attracted to the carbon dioxide and warmth produced by sleeping hosts. They undergo incomplete metamorphosis (egg, nymph, adult).

Risks & Benefits

Risks: Significant pest that causes itchy welts, allergic reactions, psychological distress, and secondary skin infections from scratching. Benefits: None; they are considered a major domestic nuisance.

Identified on: 1/2/2026