In a significant crackdown, authorities in Australia confiscated over 100,000 live cockroaches from a breeder. This incident marks the largest seizure of exotic invertebrates in the country. The species involved were Madagascar hissing cockroaches and dubia cockroaches, with a combined value of 200,000 Australian dollars ($142,000).
The seizure occurred in May, in the city of Bathurst located in New South Wales. The information comes from the Department of Climate Change, Energy, Environment and Water in Australia.
The Madagascar hissing cockroach is known for its considerable size, measuring between 2 to 3 inches (5 to 8 centimeters) in length. A comparison shows that they are larger than the common Australian cockroach, which ranges from 0.9 to 1.4 inches (2.3 to 3.6 centimeters). Australia’s climate, especially the sub-tropical regions, supports the thriving of various cockroach species.
According to Stefanie Lesser, a local snake catcher, the appeal of these larger cockroaches lies in their economic advantage as reptile food. Their size allows them to be a more efficient dietary choice, needing fewer insects per meal. However, officials strongly recommend using alternative feeders like crickets or wood roaches.
Importation and possession of Madagascar hissing and dubia cockroaches are illegal in Australia. These species haven’t undergone environmental risk assessments and pose threats, such as disease spread or harm to native wildlife. The country enforces strict biosecurity measures to safeguard its agriculture, horticulture, and native species. Smuggling of illegal animal, insect, or plant items can result in hefty fines.
Despite the large-scale seizure, no charges were filed against the breeder involved. The confiscated cockroaches face euthanasia, as directed by the department.

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