Oriental Cockroach nymph

Scientific Name: Blatta orientalis

Order & Family: Order: Blattodea, Family: Blattidae

Size: Nymphs vary from 6mm to 25mm as they grow; adults reach 25mm to 32mm.

Oriental Cockroach nymph

Natural Habitat

Dark, damp, and cool areas such as basements, crawl spaces, sewers, and under leaf mulch outdoors.

Diet & Feeding

Omnivorous scavenger that feeds on decaying organic matter, starchy foods, and proteins.

Behavior Patterns

Nocturnal and flightless. They prefer cool environments and are often called 'water bugs' because they congregate around water sources.

Risks & Benefits

Risks include contamination of food and surfaces with bacteria (like E. coli or Salmonella) and triggering asthma or allergies. Benefits are limited to their role as decomposers in natural outdoor ecosystems.

Identified on: 3/22/2026