
Community identification
Cockroach nymph, likely German cockroach
Blattella germanica
- Order & Family
- Blattodea, Blattellidae
- Size
- Nymphs are about 2–12 mm long; adults reach roughly 13–16 mm.
Natural Habitat
Warm, humid indoor areas, especially kitchens, bathrooms, plumbing voids, and appliances. Commonly found near food, water, and heat sources.
Diet & Feeding
Omnivorous scavengers that eat crumbs, grease, starches, pet food, decaying organic matter, and occasionally nonfood materials.
Behavior Patterns
Mostly nocturnal, fast-running, and highly secretive; they hide in cracks by day and reproduce rapidly. Nymphs lack fully developed wings and may show a pale stripe behind the head.
Risks & Benefits
Can contaminate food and surfaces and carry allergens that aggravate asthma and allergies. They provide little household benefit, though they recycle organic matter outdoors.