Bed Bug (Fecal Spotting / Speckling)

Scientific Name: Cimex lectularius

Order & Family: Order: Hemiptera, Family: Cimicidae

Size: N/A for spotting; adult insects are 4-5 mm in length (about the size of an apple seed).

Natural Habitat

Human dwellings, primarily found in seams of mattresses, bed frames, headboards, and cracks or crevices near sleeping areas.

Diet & Feeding

Strictly hematophagous (blood-feeding), primarily on humans during the night while the host is sleeping.

Behavior Patterns

Nocturnal and elusive; they hide during the day. The black spots shown are digested blood (fecal matter) excreted by the bugs onto surfaces like sheets, tape, or mattress seams.

Risks & Benefits

Risks: Causes itchy welts, allergic reactions, and significant psychological distress/insomnia. No known benefits. This spotting is a common sign of an active infestation that typically requires professional pest control.

Identified on: 4/14/2026