Bed Bug (Nymph or Cast Skin)

Natural Habitat

Indoor environments, particularly near sleeping areas such as mattresses, box springs, crevices in furniture, and behind headboards.

Diet & Feeding

Hematophagous (feeds exclusively on the blood of warm-blooded animals, primarily humans).

Behavior Patterns

Nocturnal and cryptic; they hide during the day in tight cracks and crevices and emerge at night to feed. They are attracted to carbon dioxide and body heat.

Risks & Benefits

Risks: Their bites cause itchy welts, allergic reactions, anxiety, and insomnia in humans. They are notorious pests that are difficult and expensive to exterminate. Benefits: None known for humans or household ecosystems.

Identified on: 3/3/2026