Cockroach nymph

Scientific Name: Blattodea (genus species varies, likely Blattella germanica)

Order & Family: Order: Blattodea; Family: Ectobiidae (or Blattidae)

Size: Nymphs can range from 2mm to 12mm depending on the instar and species.

Cockroach nymph

Natural Habitat

Typically found in warm, humid areas near food and water sources, such as kitchens, bathrooms, wall voids, and behind appliances.

Diet & Feeding

Omnivorous scavengers that eat almost anything including food scraps, crumbs, grease, glue, hair, and organic matter.

Behavior Patterns

Nocturnal and highly secretive. They go through incomplete metamorphosis (egg, nymph, adult). Nymphs shed their exoskeletons multiple times as they grow.

Risks & Benefits

Potential risks include the spread of bacteria (such as Salmonella and E. coli), contamination of food, and triggering allergies or asthma through their droppings and shed skins. They offer little benefit in indoor environments, though wild species aid in decomposition.

Identified on: 1/30/2026