Bed Bug Nymph

Scientific Name: Cimex lectularius

Order & Family: Order Hemiptera, Family Cimicidae

Size: 1.5 mm to 4.5 mm (depending on life stage)

Bed Bug Nymph

Natural Habitat

Primarily indoor environments such as mattresses, bed frames, cracks, and crevices in human dwellings.

Diet & Feeding

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

Behavior Patterns

Nocturnal, elusive, and photophobic. They undergo hemimetabolous development (five nymphal stages) requiring a blood meal to molt at each stage.

Risks & Benefits

Potential for significant psychological distress, allergic reactions, and skin irritation from bites. They are not known vectors of disease but represent a major domestic pest nuisance.

Identified on: 6/8/2026