It is an Asian insect notorious for causing widespread destruction of crops across rural Japan, China, Taiwan and the Korean peninsula.
The pest – so named because of the pungent odour it omits – was first spotted in the country in 2015.
But as winter approaches, they have migrated to cities and invaded homes to hibernate.
“For this insect, this time of year marks a period of investigating possible hibernation locations for the adults. Our houses are nicely heated and sheltered, making them perfectly welcoming.”
It is not good news for Parisians. The bugs – which grow to about 17 millimetres in size – are notoriously difficult to get rid of once they arrive, and tend to multiply quickly.
After being accidentally introduced to the US in 1998, they have spread to more than 40 states and caused millions of pounds worth of damage to crops. In optimum conditions six generations can be born within a single year. They eat whatever is to hand including apples, apricots, corn, lima beans, peppers and soybeans.
Killing them in the home is not recommended either. While the stink bugs are harmless enough, once dead they continue to release their odour.