Bed Bug (Fecal matter/staining)
Scientific Name: Cimex lectularius
Order & Family: Hemiptera / Cimicidae
Size: Adults are 4 to 5 mm long (about the size of an apple seed). High-magnification images like this often show smaller fecal spotting.
Natural Habitat
Found in human dwellings, typically in cracks and crevices, bed frames, mattresses, and upholstered furniture.
Diet & Feeding
Obligate hematophages; 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 leave behind dark spots of digested blood (fecal staining) on surfaces they frequent.
Risks & Benefits
Risks include itchy skin welts, allergic reactions, secondary skin infections from scratching, and psychological distress/insomnia. They are not known to transmit diseases to humans but are considered significant household pests.
Identified on: 12/26/2025