Bed Bug (Nymph phase)

Scientific Name: Cimex lectularius

Order & Family: Hemiptera, Cimicidae

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

Bed Bug (Nymph phase)

Natural Habitat

Inhabits human dwellings, specifically in cracks, crevices, mattress seams, and bedding close to hosts.

Diet & Feeding

Obligate hematophagous (blood-feeders), primarily targeting humans but will bite other mammals or birds.

Behavior Patterns

Nocturnal parasites that hide during the day and emerge at night to feed. They undergo five nymphal stages, requiring a blood meal to molt into each subsequent stage.

Risks & Benefits

Significant household pest. Risks include itchy skin welts, allergic reactions, insomnia, and psychological distress. They are not known to transmit diseases to humans but cause significant economic impact and stress.

Identified on: 12/31/2025