American Cockroach (Nymph)

Scientific Name: Periplaneta americana

Order & Family: Order: Blattodea; Family: Blattidae

Size: Nymphs vary in size as they grow (instars), while adults typically reach 1.4 to 2.1 inches (35 to 53 mm).

American Cockroach (Nymph)

Natural Habitat

Damp, dark, and warm areas such as basements, sewers, steam tunnels, and drainage systems; often enters buildings seeking food or water.

Diet & Feeding

Omnivorous and opportunistic scavengers; they eat decaying organic matter, food scraps, starch, paper, and animal products.

Behavior Patterns

Nocturnal and highly agile; they undergo incomplete metamorphosis with multiple molts before reaching maturity. They are gregarious and often cluster together in shelter.

Risks & Benefits

Risks include the spread of bacteria (like Salmonella and E. coli), contamination of food sources, and triggering allergies or asthma. Benefits are mainly ecological, as they act as decomposers in natural environments.

Identified on: 4/25/2026