Bed Bug (Nymph/Egg casing residue)

Nests near host sleeping areas; commonly found in mattress seams, bed frames, headboards, and cracks in furniture or walls.

Obligate hematophagous (feeds exclusively on blood, primarily from humans).

Nocturnal and elusive; they hide during the day and emerge at night to feed. They undergo incomplete metamorphosis (egg, nymph, adult) and require a blood meal to molt into the next stage.

Risks: Can cause itchy welts, allergic reactions, and significant psychological distress/insomnia. They are not known to transmit diseases but are a major domestic pest. Benefits: None to humans or standard ecosystems.