Codling Moth Cydia pomonella
A fairly distinctive greyish 'tortrix', with a darker, often coppery-brown roundish patch towards the rear of the wing.
It is fairly common throughout much of Britain, and because of the larval habits of burrowing into fruits, is often considered a pest species.
The caterpillars feed inside the fruits of apple (Malus), quince (Cydonia oblonga), pear (Pyrus) and other wild and cultivated fruit.
The adults occur mainly in July and August, sometimes with a second generation in September and October.