Bed Bug (Nymph)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: Nymphs range from 1.5mm to 4.5mm; the small, reddish specimen in the image is consistent with a nymph that has recently fed.

Bed Bug (Nymph)

Natural Habitat

Typically found in human dwellings, concentrated in bed frames, mattresses, and cracks or crevices near sleeping areas.

Diet & Feeding

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

Behavior Patterns

Nocturnal and elusive; they emerge at night to feed and hide during the day. They undergo five nymphal stages, requiring a blood meal to molt into the next stage.

Risks & Benefits

While not known to transmit diseases, their bites can cause allergic reactions, skin rashes, and significant psychological distress. They are considered a major indoor pest requiring professional eradication.

Identified on: 4/15/2026