Convolvulus hawk-moth (Agrius convolvuli) cAugustht at Tom's House on Skomer Island.

The male has heavier markings than the female and sometimes has a broad central cross-band. The male also has thicker, longer antennae than the females. They usually hold the wings close to the body whilst resting, like the Privet and Pine Hawk-moths.
They are nocturnal and rest by day, when it can often be seen on walls, rocks and tree trunks. They are attracted to light and can be seen from dusk to dawn. As they have an unusually long proboscis, they are able to feed on tubular flowers e.g. tobacco plant (Nicotiana), petunia, lilies and phlox, that many other moths cannot feed on.
They are unable to overwinter in the UK. They pupate underground.