Bed Bug / 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/yellowish, while adults are larger and reddish-brown).

Bed Bug / Bed Bug Nymph

Natural Habitat

Indoor environments, specifically in cracks and crevices of mattresses, bed frames, furniture, and behind baseboards.

Diet & Feeding

Obligate hematophagy (exclusively feeds on the blood of humans and other warm-blooded animals).

Behavior Patterns

Nocturnal and elusive; they emerge at night to feed and hide during the day. They undergo incomplete metamorphosis (egg, nymph, adult).

Risks & Benefits

Risks include itchy skin welts, allergic reactions, and psychological distress/insomnia. They are not known to transmit diseases to humans but are considered a major household pest.

Identified on: 1/10/2026