Bed Bug (Early stage nymph)

Scientific Name: Cimex lectularius

Order & Family: Hemiptera: Cimicidae

Size: Nymphs range from 1.5 mm to 4 mm; adults grow to about 5-7 mm.

Bed Bug (Early stage nymph)

Natural Habitat

Indoor environments, primarily in sleeping areas. They hide in cracks and crevices of mattresses, box springs, bed frames, furniture seams (as seen in the image), and behind baseboards.

Diet & Feeding

Hematophagous (feed exclusively on the blood of warm-blooded animals), primarily humans, typically feeding at night while the host sleeps.

Behavior Patterns

Nocturnal and elusive. They aggregate in safe harborage sites during the day. Nymphs require a blood meal to molt to the next stage. They are known for hitchhiking on luggage, clothing, and used furniture to spread to new locations.

Risks & Benefits

Risks: Their bites cause itchy red welts, allergic reactions, and secondary infections from scratching. They are a significant cause of anxiety, stress, and insomnia. They are not confirmed vectors of human disease. Benefits: None known for humans or the domestic ecosystem.

Identified on: 2/24/2026