Skin cast (likely from a bed bug or similar household pest nymph)

Found indoors in human dwellings, typically in cracks, crevices, mattress seams, and bed frames near sleeping areas.

The insect that left this cast (bed bug) feeds exclusively on the blood of humans and other warm-blooded animals.

The specimen shown is an exuviae (shed skin) resulting from molting. Bed bugs must molt through five nymphal stages before reaching adulthood. They are primarily nocturnal and hide during the day.

While bed bugs are not known to transmit diseases to humans, their bites can cause itchy welts, allergic reactions, and significant psychological distress. They are considered a major household pest.