Bed Bug (Fecal Spotting/Stain)
Scientific Name: Cimex lectularius (related to the insect causing the stain)
Order & Family: Order: Hemiptera, Family: Cimicidae
Size: Stains vary but are typically 1-3mm; Actual adults are 4-5mm long
Natural Habitat
Typically found in human dwellings, especially in bedrooms, hiding in mattress seams, box springs, crevices in furniture, and behind baseboards.
Diet & Feeding
Hematophagous (feeds exclusively on the blood of warm-blooded animals, primarily humans).
Behavior Patterns
Nocturnal feeding; they hide during the day in clusters. The image likely depicts 'fecal spotting'—digested blood excreted by the bug, which appears as rusty or reddish-brown smears on fabrics.
Risks & Benefits
Risks: Bites cause itching, allergic reactions, and sleep loss. High psychological stress. While not known to transmit disease, infestations are difficult and expensive to eradicate. No ecological benefits in a domestic setting.
Identified on: 2/20/2026