Bed Bug (Egg/Nymph)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: Approximately 1 mm (eggs/first instar nymphs) to 5 mm (adults).

Bed Bug (Egg/Nymph)

Natural Habitat

Indoor environments, primarily occurring in cracks and crevices near sleeping areas, such as mattresses, bed frames, and headboards.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive; they hide during the day and emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to progress through each growth stage.

Risks & Benefits

Risks include itchy skin rashes, psychological distress, and potential allergic reactions. They are not known to transmit diseases, but infestations are difficult and costly to eradicate. They provide no known ecological benefits in human domestic environments.

Identified on: 1/13/2026