In Bathurst, New South Wales, Australia, authorities confiscated more than 100,000 live cockroaches from a single breeder known as the ‘cockroach kingpin.’ This seizure is one of the largest ever of exotic invertebrates. Among the confiscated bugs were Madagascar hissing cockroaches and Dubia cockroaches, valued at a whopping 200,000 Australian dollars (£106,000).

The Madagascar hissing cockroach, measuring between 5 to 8 centimetres long, is notably one of the largest species of cockroaches. Photos released by the department depicted these shiny, brown creatures, some larger than a person’s finger. Unlike the typical Australian cockroach, which grows to lengths of 2.3 to 3.6 centimetres, these exotic species are significantly larger.

According to Bathurst snake catcher Stefanie Lesser, the breeder likely intended to sell the larger cockroaches as a more economical reptile food option, as their size reduces the quantity needed. She advised pet owners to opt for crickets or wood roaches as feed for their lizards instead of these exotic species.

Despite their size advantage, Lesser cautioned about the potential devastation if these cockroaches were to escape and spread disease among native wildlife, particularly crickets that are essential for birds. The impact could result in the spread of diseases to various animals, posing a threat to the ecosystem.

The Department mentioned that exotic cockroaches have not undergone environmental risk assessments and could introduce diseases or harm native wildlife. Importing, breeding, or selling Madagascar hissing and Dubia cockroaches in Australia is illegal, regardless of how they were obtained.

Australia’s stringent biosecurity measures aim to safeguard the agriculture, horticulture sectors, and native wildlife from pest infestations. Smugglers of illegal animals, insects, or plants can face significant fines. Although the breeder faced no charges, the seized cockroaches will be euthanized, and authorities warned of potential prosecutions against those caught with such invertebrates.

A spokesperson from DCCEEW issued a statement, cautioning pet businesses and owners against possessing, breeding, or trading exotic cockroaches, emphasizing the enforcement of penalties under federal law for violations.