Bug Identifier
Bed Bug (Nymph phase)
Community identification

Bed Bug (Nymph phase)

Cimex lectularius

Order & Family
Hemiptera / Cimicidae
Size
1.5 mm to 4.5 mm (nymphs are smaller and translucent/yellowish until fed)
See this bug in the Encyclopedia

Natural Habitat

Indoor environments, specifically within human dwellings. They hide in cracks, crevices, mattress seams, and upholstered furniture.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive. They are attracted to heat and carbon dioxide. After feeding, they retreat to dark hiding spots to digest and molt. Their life cycle involves five nymphal stages, each requiring a blood meal to progress.

Risks & Benefits

Risks: Causes itchy, red welts; can lead to secondary skin infections from scratching and significant psychological distress/insomnia. No known ecological benefits to human health; they are considered a domestic pest.