American Cockroach Nymph

Scientific Name: Periplaneta americana

Order & Family: Order: Blattodea, Family: Blattidae

Size: Nymphs start very small and grow up to 1.5 - 2 inches as adults.

American Cockroach Nymph

Natural Habitat

Damp, dark, and warm areas such as basements, crawl spaces, sewers, and steam tunnels. Occupies both indoor and outdoor environments.

Diet & Feeding

Opportunistic omnivore and scavenger; eats decaying organic matter, food scraps, paper, and book bindings.

Behavior Patterns

Nocturnal, fast-moving, and highly social with other roaches. They undergo incomplete metamorphosis, shedding their exoskeleton multiple times as they grow.

Risks & Benefits

Risks include contamination of food surfaces and spreading odors and pathogens. They can trigger allergies and asthma in sensitive individuals. Ecosystem benefit includes acting as a scavenger that helps break down organic waste.

Identified on: 1/2/2026