German Cockroach (nymphs) and European Earwig

Scientific Name: Blattella germanica and Forficula auricularia

Order & Family: Blattodea: Ectobiidae (Cockroaches) and Dermaptera: Forficulidae (Earwig)

Size: Cockroach nymphs: 2-12mm; Earwig: 12-15mm

German Cockroach (nymphs) and European Earwig

Natural Habitat

Typically found indoors in warm, humid areas like kitchens and bathrooms (cockroaches) or dark, moist outdoor crevices and mulch (earwigs).

Diet & Feeding

Scavengers that feed on organic matter, food crumbs, grease, leaf litter, and occasionally other small insects.

Behavior Patterns

Nocturnal pests that hide in cracks and crevices during the day. The cockroaches reproduce rapidly indoors, while the earwig is likely an accidental invader from outdoors.

Risks & Benefits

Cockroaches are significant health risks as they carry allergens and pathogens. Earwigs are largely harmless nuisances but can occasionally pinch if handled.

Identified on: 5/30/2026