Smokybrown Cockroach Nymph

Scientific Name: Periplaneta fuliginosa

Order & Family: Order: Blattodea; Family: Blattidae

Size: Nymphs range from 5mm to 20mm; adults can reach 38mm (1.5 inches).

Smokybrown Cockroach Nymph

Natural Habitat

Typically found outdoors in warm, humid areas like tree holes, mulch, and greenhouses, but commonly enters homes through drains or crevices in search of water.

Diet & Feeding

Scavenger/Omnivore; feeds on decaying organic matter, leaf litter, feces, and human food scraps.

Behavior Patterns

Nocturnal and highly moisture-dependent. Nymphs often have a distinct white band across their backs. They are active year-round in warm climates.

Risks & Benefits

Risks: Can contaminate food with bacteria (e.g., Salmonella) and their droppings/shed skin can trigger asthma or allergies. Benefits: Decomposers that recycle organic nutrients in natural ecosystems.

Identified on: 3/27/2026