Think of grasshoppers and crickets, and an image of grassy meadows will doubtless come to mind. The Oak Bush-cricket brushes off such prejudice. It is just one of two ‘orthopterans’ to be arboreal, living – as I’m sure you can now guess – in oak trees. However, its nocturnal habits mean you are unlikely to spot one even if you ferret around a veteran oak. Better to wait for one to be attracted to the lights of your house. Why not leave the bathroom window ajar this month, and see whether one climbs leggily inside.