German cockroach nymph

Warm, humid indoor areas, especially kitchens, bathrooms, cabinets, and around appliances or plumbing.

Omnivorous scavengers that eat crumbs, grease, starches, sweets, cardboard, and many household organic materials.

Mostly nocturnal, fast-moving, and concealed in cracks during daylight. Nymphs molt several times before adulthood; females carry egg cases until hatching.

Can contaminate food and surfaces and may spread bacteria, allergens, and asthma-triggering proteins. They provide limited ecological value indoors but serve as prey in natural environments.