Australian officials confiscated more than 100,000 live exotic cockroaches from a commercial breeder in Bathurst, New South Wales, in May 2026 . The operation, led by the Department of Climate Change,Energy, the Environment and Water (DCCEEW), marks the largest seizure of illegal invertebrates in the nation’s history. Authorities say the animals were bred without any environmental risk assessment, violating strict biosecurity rules.

100 ,000+ illegal cockroaches seized in Bathurst

The raid uncovered an estimated 100,000 Madagascar hissing cockroaches and dubia cockroaches, both prohibited under Australian law. The DCCEEW confirmed that possession, breeding, or sale of these species is illegal regardless of how they were obtained, because they have not undergone the required risk assessments.

Madagascar hissing cockroaches flagged for disease risk

Madagascar hissing cockroaches, which can grow 2‑3 inches long, are among the world’s largest roach species. officials warned that their introduction could spread disease and threaten native wildlife,a concern echoed by the NSW Department of Primary Industries, which will now euthanize the seized specimens.

Dubia cockroaches targeted as prohibited feeder insects

Dubia cockraches, popular as feeder insects for reptiles, are also banned because they could become invasive if released. the DCCEEW spokesperson urged pet owners and reptile‑keeping businesses to switch to legal alternatives such as crickets or wood roaches, noting that the illegal trade undermines Australia’s unique biodiversity.

Who will face penalties after the May 2026 bust?

The investigation has not yet identified the breeder’s owners, but the DCCEEW said penalties will be pursued against anyone found to possess, breed, or trade the exotic cockroaches. As the NSW Biosecurity Collections prepare to dispose of the insects, authorities are also reviewing related permits and supply chains to prevent future breaches.

What remains unclear about the illegal insect network?

Key unanswered points include the exact source of the breeding stock, whether the operation supplied other regions of Australia, and how many additional illegal invertebrate shipments may be hidden in the pet trade. the report did not disclose whether any financial penalties have already been imposed.