Cockroach egg case (Ootheca)

Scientific Name: Blattodea (various species)

Order & Family: Order: Blattodea; Family: Varies by species (often Blattidae or Ectobiidae)

Size: Typically 5mm to 12mm in length depending on the species.

Cockroach egg case (Ootheca)

Natural Habitat

Dark, moist, and secluded areas such as behind appliances, in cupboards, or inside wall voids.

Diet & Feeding

Not applicable to the egg stage. The developing embryos consume the yolk within the egg; once hatched, nymphs eat decaying organic matter, starches, and crumbs.

Behavior Patterns

The ootheca is a protective capsule produced by the female. Some species carry it until it is ready to hatch, while others deposit it in a safe location within hours of formation.

Risks & Benefits

Presence indicates a potential infestation. Cockroaches are pests that can spread bacteria (like Salmonella), trigger allergies/asthma, and contaminate food surfaces.

Identified on: 3/13/2026