
Community identification
Small cockroach nymph (likely German cockroach)
Blattella germanica
- Order & Family
- Blattodea; Blattellidae
- Size
- Nymphs range from about 3 mm at hatching to 10–14 mm before adulthood; adults reach 13–16 mm.
Natural Habitat
Warm, humid indoor areas—especially kitchens, bathrooms, wall voids, and around appliances. It hides in cracks during daylight and emerges at night.
Diet & Feeding
Omnivorous scavengers that consume food scraps, grease, starches, cardboard, soap residue, and other organic matter.
Behavior Patterns
Fast-running, nocturnal, and highly reproductive; females carry an egg case until shortly before hatching. Nymphs lack wings and develop through several molts.
Risks & Benefits
Can contaminate food and surfaces and spread allergens associated with asthma and dermatitis. They provide little household benefit, though they serve as prey for predators outdoors.