Look who I found munching his way through my fuchsias a few days ago. Who would have thought he will turn into this

The Elephant Hawk Moth .

 He will have a wing span of 65_70mm and will live in hedgerows, rough grassland, woodland clearings and my garden. As well as my fuchsia he likes to eat willowherb and will fly from May to June. 

Why don't I mind him eating my fuchsia but not slugs?